Chavez, Peso v. IL State Police , 251 F.3d 612 ( 2001 )


Menu:
  • In the
    United States Court of Appeals
    For the Seventh Circuit
    Nos. 99-3691 and 00-1462
    Peso Chavez and Gregory Lee,
    individually and on behalf of all
    persons similarly situated,
    Plaintiffs-Appellants,
    v.
    The Illinois State Police, Terrance
    W. Gainer, individually and in his official
    capacity as Director of the Illinois State
    Police, Michael Snyders, individually
    and in his official capacity as Illinois State
    Police Operation Valkyrie Coordinator,
    Edward Kresl, individually and in his
    official capacity as District Commander of
    the Illinois State Police, and Larry Thomas,
    Daniel Gillette, Craig Graham, Robert
    P. Cessna, Robert Lauterbach, and Dale
    Fraher, officers of the Illinois State Police,
    in their individual capacities,
    Defendants-Appellees.
    Appeals from the United States District Court
    for the Northern District of Illinois, Eastern Division.
    No. 94 C 5307--Blanche M. Manning, Judge.
    Argued September 13, 2000--Decided May 23, 2001
    Before Flaum, Chief Judge, and Bauer and
    Kanne, Circuit Judges.
    Kanne, Circuit Judge. In this civil
    rights lawsuit, a putative class action,
    plaintiffs claim that the drug
    interdiction unit of the Illinois State
    Police (ISP), Operation Valkyrie, has a
    practice of stopping, detaining, and
    searching African-American and Hispanic
    motorists based on their race and without
    legally sufficient cause or
    justification. The allegation before us,
    at its core, is that the ISP engages in
    the practice of racial profiling. Racial
    profiling is generally understood to mean
    the improper use of race as a basis for
    taking law enforcement action. Challenges
    to the practice of racial profiling have
    become increasingly prevalent; indeed,
    this suit is part of a larger effort to
    challenge the practice nationwide.
    Defendants-appellees deny that they
    engage in racial profiling, and claim
    that they instruct their officers not to
    use race in determining which motorists
    to stop, detain, and search.
    Plaintiffs filed suit in August 1994, in
    the United States District Court for the
    Northern District of Illinois. Defendants
    included the Director of the Illinois
    State Police, Terrance Gainer; the ISP
    Operation Valkyrie Coordinator, Michael
    Snyders; the District Commander of the
    ISP, Edward Kresl; and several individual
    ISP troopers. Plaintiffs alleged numerous
    violations of their rights and sought
    damages as well as declaratory and
    injunctive relief. They based their
    claims upon the Equal Protection Clause
    of the Fourteenth Amendment; the right to
    travel provided by the Privileges and
    Immunities Clauses of Article IV and the
    Fourteenth Amendment; the Fourth
    Amendment; Title VI of the Civil Rights
    Act of 1964 and the administrative
    regulations effectuating that Title; and
    a variety of related supplemental state
    law provisions. They also sought to
    impose supervisory liability for these
    violations upon several ISP personnel
    under 42 U.S.C. sec. 1983.
    Through a series of rulings spanning the
    five years of litigation below, the
    district court dismissed the right to
    travel claim and granted defendants’
    motions for summary judgment on the equal
    protection and supervisory liability
    claims. Additionally, the court
    determined that plaintiffs lacked
    standing to obtain injunctive relief,
    declined to certify a class of Hispanic
    motorists stopped on the basis of race,
    denied plaintiffs’ motion to add a new
    named plaintiff to represent the Hispanic
    class, and denied one of plaintiffs’
    discovery related motions. In response to
    these rulings, plaintiffs moved to
    voluntarily dismiss, with prejudice,
    their remaining claims. The court
    dismissed the Title VI regulatory claims
    pursuant to Rule 16 of the Federal Rules
    of Civil Procedure, but stated that, if
    plaintiffs elected to dismiss their
    remaining claims, the court would impose
    reasonable costs. Plaintiffs continued to
    request dismissal, thus the court issued
    an order dismissing plaintiffs’ Fourth
    Amendment, Title VI, and supplemental
    state law claims, with prejudice and
    pursuant to Rule 41 of the Federal Rules
    of Civil Procedure.
    Plaintiffs now appeal the grant of
    summary judgment on their equal
    protection and supervisory liability
    claims, the dismissal of named plaintiff
    Peso Chavez’s right to travel claim, the
    finding that they lacked standing to
    pursue injunctive relief, and the
    district court’s denial of their motions
    to add a new plaintiff, to certify a
    class, and to take certain discovery.
    Plaintiffs also challenge the propriety
    of requiring them to pay defendants’
    costs as a precondition to dismissal.
    Before we review the procedural and
    substantive legal challenges raised in
    this appeal, we will describe the
    Operation Valkyrie program; detail the
    facts surrounding the stops, detentions,
    and searches of each of the named
    plaintiffs; introduce the statistics
    plaintiffs have presented in their effort
    to show that defendants engage in racial
    profiling; and summarize the relevant
    procedural history.
    I.   History
    A.   Operation Valkyrie
    The Illinois State Police run a drug
    interdiction program entitled "Operation
    Valkyrie." The program is "designed to
    acquaint patrol officers with techniques
    which will enhance their capability to
    detect and apprehend drug couriers . . .
    while focusing on the enforcement of
    highway safety regulations." Operation
    Valkyrie: An Officer’s Guide to Drug
    Interdiction Techniques i. Since its
    inception in 1990, the ISP has assigned
    more than one hundred officers to
    Valkyrie teams that operate in eleven of
    the ISP’s twenty-one districts. Non-
    Valkyrie officers also receive Valkyrie
    training in order to familiarize them
    with drug-interdiction techniques. Master
    Sergeant Michael Snyders, the former
    statewide Operation Valkyrie Coordinator,
    testified that Valkyrie officers only
    stop vehicles for traffic enforcement
    reasons (i.e. for traffic violations or
    other threats to traffic safety). Once a
    vehicle is stopped, he explained,
    Valkyrie officers look for indicators of
    drug trafficking. These indicators are
    numerous--indeed there is a list of
    twenty-eight factors in the Operation
    Valkyrie training manual--and include
    such things as too little or too much
    luggage for the stated length of trip,
    maps from drug source cities or states,
    and air freshener. Officers are also
    trained to look for verbal and non-verbal
    signs of stress and deception, such as
    nervousness and an overly friendly
    demeanor. Snyders testified that when
    Valkyrie officers observe these
    indicators, they are trained to request
    consent to search the vehicle. In 1992,
    Valkyrie officers requested permission to
    search in approximately fourteen percent
    of motorist stops, and when requested,
    over ninety-eight percent of motorists
    granted consent.
    Plaintiffs allege that race plays into
    the Valkyrie officers’ decision to stop a
    motorist--what we will term "pre-stop
    profiling"--and into the decision to
    detain or search a motorist, and that no
    ISP policy prohibits troopers from using
    race as a factor in making these
    determinations. As evidence of this,
    plaintiffs assert that certain ISP drug
    interdiction training materials
    emphasize, through statistics, images,
    and examples, the alleged predominance of
    Hispanics among those highway travelers
    carrying illegal drugs. They also point
    to the testimony of Trooper Robert
    Cessna, who testified that a motorist’s
    race is one "indicator" that "you’ve got
    to keep in mind."
    Plaintiffs further assert that Operation
    Valkyrie grants troopers substantial
    discretion to decide which motorists to
    stop and search. ISP training materials
    acknowledge that discretion can
    deteriorate into abusive practices,
    including racial discrimination.
    Plaintiffs argue that ISP procedures for
    addressing citizen complaints and
    reviewing trooper enforcement activity do
    not sufficiently curb an officer’s
    ability to impermissibly take race into
    account. When a complaint is filed, a
    case number is typically assigned, a case
    is opened, and the complaint is
    processed. If, however, ISP personnel
    determine that a complaint is not
    sufficient for further investigation or
    that another entity is already
    investigating the violation, no case is
    opened. The ISP will not "open a case"
    when a citizen complains that he was
    stopped on the basis of race and issued a
    traffic citation for an offense he did
    not commit because the ISP views this
    issue as one to be resolved by the
    courts. See Dep. of Teresa Kettelkamp at
    86-87 (former deputy director of the
    Division of Internal Investigation).
    Apparently, the ISP assumes that the
    motorist will go to traffic court and
    allege racial prejudice as a defense to
    the ticket. In addition, the ISP Office
    of Inspection and Audits does not
    investigate the issue of race in trooper
    enforcement activity.
    The ISP presented evidence that Valkyrie
    officers are taught not to use race in
    determining what motorists to stop,
    detain, and search. The training manual
    for Operation Valkyrie states that the
    "[ISP] has never endorsed, condoned or
    promoted the use of any profiling system
    in its interdiction program." See
    Operation Valkyrie: An Officer’s Guide to
    Drug Interdiction Techniques i. Training
    sessions also included presentment of a
    videotape which emphasizes that drug
    couriers look "pretty much like everyone
    else," that it is difficult to
    characterize smugglers on the basis of
    nationality, and that ISP officers must
    have a lawful reason to stop or search
    motorists.
    During the early years of the Valkyrie
    program, some ISP districts attempted to
    monitor trooper discretion by collecting
    data on the race of motorists searched by
    Valkyrie troopers. One reason for
    collecting such data, according to
    Snyders, was to respond to potential
    questions about whether officers were
    targeting motorists because of their
    race. This data was also used as a
    supervisory tool to ensure that team
    members were not concentrating on certain
    ethnic groups. Between 1990 and 1994,
    monthly statistics in District Six, one
    of the ISP districts to collect such
    data, demonstrated that African-Americans
    and Hispanics comprised over sixty
    percent of the motorists searched.
    B.   The Stops and Searches
    1. The Stop and Search Involving Peso
    Chavez
    Peso Chavez’s claim evolved out of the
    stop, search, and arrest of a white/1
    motorist, George Koutsakis. In November
    1992, an Illinois state trooper, and
    Valkyrie officer, stopped Koutsakis for
    exceeding the sixty-five mile per hour
    speed limit. Koutsakis was driving a red
    or burgundy rental car bearing California
    license plates, and had open maps, a
    mobile phone, and fast food wrappers in
    his vehicle. While the trooper was in the
    process of issuing a warning ticket, a
    second Valkyrie officer arrived (Trooper
    Graham) and walked his drug-detecting
    canine around the vehicle. The dog
    alerted, indicating the presence of
    drugs, and the subsequent search of
    Koutsakis’s vehicle uncovered over two
    hundred pounds of marijuana in the trunk.
    Koutsakis’s criminal defense attorney,
    Nancy Hollander, suspected that state
    troopers were stopping motorists based on
    skin tone or travel patterns, and decided
    to explore whether the stop of Koutsakis
    might have been pretextual. As part of
    her criminal defense strategy, she thus
    hired Chavez, a private investigator and
    New Mexico resident, to recreate the
    circumstances leading to Koutsakis’s stop
    and arrest.
    Chavez, who is Hispanic, emulated the
    circumstances surrounding Koutsakis’s
    stop and arrest, to see if he would be
    stopped by the Illinois State Police. He
    rented a red car with California license
    plates. On February 18, 1993, he placed
    open maps, fast food wrappers, a cellular
    phone, and a gym bag in the car, and
    proceeded to Interstate 80 ("I-80").
    Katherine Austin, a white female from the
    Public Defenders’ Office, followed
    closely behind him in a separate car.
    Chavez and Austin traveled to the western
    edge of Bureau County, Illinois, and
    began driving east on I-80. When Chavez’s
    vehicle passed State Trooper Larry
    Thomas, parked on the east-bound shoulder
    of I-80 at mile post fifty-three, Trooper
    Thomas decided to follow it. Thomas
    followed Chavez’s vehicle for
    approximately twenty-four miles, or
    almost one-half hour, though he could not
    explain why he decided to do so. Chavez
    was not speeding; he traveled no faster
    than sixty miles per hour, although the
    speed limit was sixty-five. At one point,
    Thomas drove alongside Chavez’s vehicle
    and looked him in the face. Thomas
    learned that the car was a rental car
    after he had a license plate check run
    through the dispatcher
    Thomas stopped Chavez at about mile post
    seventy-seven, allegedly because Chavez
    failed to signal a lane change. Chavez
    testified that he did signal and denied
    committing any traffic violation. Austin,
    who had been following Chavez, agreed.
    Defendants conceded for the purposes of
    summary judgment that Chavez did not
    violate any traffic laws. Thomas
    approached the car and noticed several
    items inside, including Chavez’s small
    suitcase, several fast food bags, and an
    atlas. He also saw Chavez’s hands shaking
    and thought Chavez was nervous. Thomas
    requested Chavez’s driver’s license and
    registration, and returned to his squad
    car.
    Thomas was subsequently joined by
    Sergeant Dan Gillette, who had been
    monitoring traffic at mile post seventy-
    seven. Gillette claims that Thomas told
    him there was something funny about
    Chavez, that he smelled air freshener in
    the car and that he did not see any
    luggage. Gillette suggested that Thomas
    run a criminal history check and a check
    through the El Paso Intelligence Center
    (EPIC), a database that contains
    information about border crossings.
    Gillette then went over to Chavez’s
    vehicle and asked Chavez where he was
    going. Chavez replied he was going to
    Chicago for the day; this was not
    entirely true because Chavez had not yet
    decided whether he would go or not. To
    Gillette, Chavez appeared nervous and
    deceptive regarding his destination.
    Gillette also testified that he saw a
    road atlas and fast food wrappers in the
    car, and thought the car was too clean to
    have come from Albuquerque. Gillette
    returned to Thomas’s vehicle and Thomas
    informed him that Chavez’s license and
    registration were valid and that Chavez
    had no criminal history. Gillette told
    Thomas that he was still suspicious due
    to the numerous indicators of drug
    trafficking.
    Thomas issued Chavez a warning ticket
    based on the alleged failure to signal,
    and returned Chavez’s license and
    registration once he signed the citation.
    Thomas then asked Chavez for permission
    to search his car. Chavez did not consent
    to the search and stated that he wanted
    to leave. Based on the indicators,
    Gillette felt there was sufficient reason
    to detain Chavez for a canine walk
    around, and thus the officers detained
    Chavez to await the arrival of a canine
    unit.
    When Trooper Graham arrived with his
    police dog, Krott, Thomas asked Chavez if
    he would consent to a canine walk-around.
    Gillette testified that Chavez did not
    consent, though Thomas’s report said he
    did. The dog did not alert on the first
    walk-around. Chavez admits that he became
    nervous during the encounter. Because it
    was a rental car, he had no knowledge of
    whether it had previously been used to
    transport drugs. He also feared that, if
    the search was unsuccessful, the troopers
    would become frustrated and plant
    evidence.
    The troopers conducted a second walk-
    around. Graham testified that this time
    the canine alerted, but Chavez did not
    see the alert. In response, Gillette
    asked Chavez to go sit in Officer
    Thomas’s vehicle. Gillette, Graham, and
    Trooper Robert Cessna (who went to the
    scene when radio traffic indicated that
    Chavez was suspicious) then proceeded to
    search Chavez’s car. The officers
    examined the car’s interior, trunk, and
    wheel wells, and the contents of Chavez’s
    luggage. The EPIC report then came back
    and indicated that Chavez’s rental car
    had made several border crossings during
    the previous year. The car was searched
    again, this time using flashlights, and
    this search included an examination of
    the engine. Again, the officers did not
    find any contraband. Finally, thirty-five
    to fifty-five minutes after he was
    stopped, Thomas told Chavez he was free
    to go. Thomas completed a field report
    regarding the search of Chavez’s vehicle
    and listed Chavez’s race as "white,"
    despite the fact that the report
    contained a listing for Hispanic.
    Although Chavez resides in New Mexico,
    plaintiffs allege that his business has a
    prominent Illinois nexus and Chavez is
    confident that he will travel to Illinois
    in the future. Nonetheless, Chavez was
    not stopped by the ISP on subsequent
    travel dates of February 25 and 27, 1993,
    and has not returned to Illinois since
    February 1993.
    2.   The Stops and Searches Involving
    Gregory Lee
    Gregory Lee, who is African-American,
    testified that he was unjustifiably
    stopped, searched, and detained three
    times in 1993. In late summer or early
    fall of 1993, Lee was driving west on I-
    80 with his wife, who is also African-
    American, when an ISP officer stopped
    them. Lee says that he had not violated
    any traffic law. The officer requested
    consent to search the vehicle, and Lee
    gave his consent. The officer instructed
    Lee and his wife to step out of the car.
    He patted down Lee and indicated that he
    would pat down Mrs. Lee but then turned
    and searched the trunk instead. The
    officer found no contraband, and no
    ticket or warning was issued.
    In March 1993, Lee was driving on I-80
    near Orland Park, Illinois, with his
    friend, Mike, who is also African-
    American. ISP Trooper Robert Lauterbach
    stopped Lee and told him he was speeding,
    which Lee alleges is false. Trooper
    Lauterbach asked for Lee’s license and
    then asked him to step out of the car.
    Once Lee stepped out, the officer brought
    him back to the rear of the car and at
    the same time asked Mike to step out of
    the car. Lee asked the trooper what the
    problem was and the trooper said
    something about them looking suspicious.
    The officer patted them down; at some
    point, an unidentified second officer
    arrived. Lauterbach ordered Lee and his
    friend to kneel on the roadside, behind
    Lee’s vehicle, with their hands on their
    heads. While they were kneeling,
    Lauterbach searched the car without Lee’s
    consent--he searched the front and back
    seat and the glove box--but found no
    contraband. The officer then returned
    Lee’s license and keys and allowed Lee
    and his friend to go. No warning or
    ticket was issued.
    In August 1993, Lee was driving on I-80,
    at the intersection of I-57, when he was
    stopped by ISP Trooper Dale Fraher. Lee
    got out of the car and asked the officer
    if there was a problem. Fraher claimed
    that Lee’s car wheel was wobbling and
    that there was a problem with the license
    plate registration sticker, though
    plaintiff denies that there was anything
    wrong with either. After asking for and
    receiving Lee’s drivers’ license, Fraher
    asked if he could search Lee’s car, twice
    stating that one can never tell with "you
    people." Lee consented; Fraher searched
    the car but found no contraband. Fraher
    then returned Lee’s license and allowed
    Lee to go without issuing a ticket or
    warning.
    Lee alleges that he travels on Illinois
    highways at least sixty times per year
    and that he intends to continue doing so.
    He contacted ACLU attorneys after seeing
    an article in the Chicago Defender
    discussing the lawsuit filed by Peso
    Chavez. The article included the ACLU’s
    phone number, indicating that they would
    be "willing to listen to anyone else
    subjected to questionable state police
    auto searches." Stephen Thomas, ACLU
    Pulls Over State Police, Chicago Defender,
    Aug. 31, 1994. Lee contacted the ALCU be
    cause he felt that he was someone who had
    a similar experience and later became a
    party to the current lawsuit.
    C.   The Statistics
    An ISP stop can generate several types
    of records. First, when an ISP officer
    makes a stop he must radio headquarters
    to convey selected information, including
    the state and license plate number of the
    vehicle stopped. Second, if the ISP
    officer issues a citation or a warning to
    one or more of the vehicle occupants,
    this fact is recorded in the "citations
    and warnings database." This electronic
    database includes the name of the
    individual receiving the citation or
    warning as well as the basis for the
    action (such as speeding or an illegal
    lane change). Finally, in a limited
    number of circumstances an officer will
    complete a "field report." Field reports
    are typically completed when contraband
    is found, when a custodial arrest is
    made, when canines are involved, or when
    there is damage to police equipment or
    injury to a trooper, though even in these
    circumstances they are not always
    completed. When ISP officers use Valkyrie
    skills or obtain information of interest
    to the Valkyrie program they are
    encouraged to fill out a field report and
    to mark it with a "V"--these are referred
    to as the "Valkyrie field reports."
    At plaintiffs’ request, the defendants
    provided the citations and warnings and
    the field reports databases to Temple
    University’s Center for Public Policy.
    The Center analyzed this data and James
    Ginger and Martin Shapiro, plaintiffs’
    experts, examined the Center’s
    results./2 Plaintiffs’ experts compared
    the percentage of whites, African-
    Americans, and Hispanics in the ISP
    databases with the percent that each race
    is present in the Illinois population,
    based on data from the 1990 Census, and
    present on Illinois roads, as estimated
    by the Nationwide Personal Transportation
    Survey (NPTS). In Shapiro’s opinion, the
    field reports indicated a systemic over-
    representation of African-Americans and
    individuals of Hispanic origin in
    Valkyrie police activity. Ginger
    concluded that officers engaging in drug
    interdiction efforts selected a
    significantly higher percentage of
    Hispanic drivers for discretionary
    enforcement efforts--defined as
    activities which give the officer large
    amounts of latitude in determining what,
    if any, action to take--than did other
    ISP officers./3
    D.   Procedural History
    More than five years of litigation
    preceded this appeal. Peso Chavez filed
    this suit as a "civil rights class
    action" in the U.S. District Court for
    the Northern District of Illinois on
    August 30, 1994. After a search for
    additional plaintiffs, Gregory Lee was
    one of several people granted leave to
    join the suit. On November 7, 1995,
    plaintiffs moved to certify a class of
    all persons who in the past had been, and
    in the future would be, unlawfully
    stopped, detained, or searched by the ISP
    in accordance with their practice of
    improperly stopping motorists on the
    basis of race. On May 23, 1996,
    plaintiffs filed a third amended
    complaint, adding an additional plaintiff
    and fourteen defendants. Plaintiffs
    subsequently filed a fourth amended
    complaint in September 1996, dropping
    seven of the newly named defendants. The
    original deadline for the completion of
    fact discovery was December 29, 1995; at
    plaintiffs’ request, this deadline was
    moved to March 31, 1996, then to May 24,
    1996, and eventually to August 30, 1997.
    Expert discovery closed on November 13,
    1998.
    On February 9, 1996, the district court
    dismissed plaintiffs’ right to travel
    claims under Rule 12 (b)(6) of the
    Federal Rules of Civil Procedure. On
    November 5, 1998, the district court
    granted the defendants’ motion for
    summary judgment on the equal protection
    and certain of the supervisory claims and
    granted qualified immunity to several ISP
    officers on the Fourth Amendment claims.
    The court also declined to certify a
    class of all motorists unlawfully stopped
    due to their race, because the class
    certification motion appeared to be
    premised on the defunct equal protection
    claim. The court stated that plaintiffs
    would be allowed to renew their motion if
    they elected to pursue certification
    based on the claims that survived summary
    judgment. On April 2, 1999, plaintiffs
    thus sought to certify "a class
    consisting of all persons of Hispanic
    race or color" who had been or would be
    stopped, detained, or searched by the ISP
    in violation of Title VI. The same day,
    twenty months after the close of fact
    discovery, plaintiffs also sought leave
    to add Christopher Jimenez as an
    additional named plaintiff. The court
    found that the named plaintiffs did not
    have standing to pursue injunctive relief
    under Title VI, and thus declined to
    certify a class of Hispanic motorists
    with respect to the Title VI claims. The
    district court also denied plaintiffs’
    motion to amend their complaint to add
    Jimenez as a named plaintiff.
    In February 1997, the plaintiffs served
    the Illinois Secretary of State with a
    subpoena for electronic data on licensed
    Illinois drivers. The Secretary
    determined that the plaintiffs were
    required to pay the statutory rate for
    provision of such information, and
    calculated the charge at $160,200.
    Plaintiffs objected that the charge was
    excessive, and they argued that they
    should only be required to pay the cost
    incurred by the Secretary in providing
    the information. The court found that the
    statutory fee of two cents per record was
    reasonable and overruled plaintiffs’
    objections.
    In August 1999, in response to the
    court’s orders granting summary judgment
    on a number of the plaintiffs’ claims and
    finding that the plaintiffs lacked
    standing to pursue their Title VI claims
    for equitable relief, the plaintiffs
    moved to voluntarily dismiss with
    prejudice their remaining claims. They
    requested leave to amend their complaint
    pursuant to Rule 15(a) of the Federal
    Rules of Civil Procedure in order to
    eliminate the Fourth Amendment claims,
    supplemental state law claims, and Title
    VI statutory claims. They also moved to
    dismiss their Title VI regulatory claims
    pursuant to Rule 16(c)(1). Plaintiffs
    stated that they did not want to go to
    trial on these individual damages claims,
    because such a trial could not provide
    their desired remedy: injunctive relief
    against the alleged racial profiling. The
    court denied plaintiffs’ request for
    leave to amend under Rule 15(a),
    dismissed the Title VI regulatory claims
    pursuant to Rule 16, and advised
    plaintiffs that, if they elected to
    dismiss claims pursuant to Rule 41(a)(2),
    the court would impose reasonable costs.
    Plaintiffs opposed the imposition of
    costs, but the district court ruled that
    "an award of reasonable costs will be a
    condition precedent to entry of an order
    permitting the plaintiffs to voluntarily
    dismiss their remaining claims." Chavez
    v. Ill. State Police, No. 94 CV 5307,
    
    1999 WL 754681
    , *6 (N.D. Ill. Sept. 9,
    1999). On September 16, 1999, the court
    granted plaintiffs’ motion to voluntarily
    dismiss the remaining claims with
    prejudice, pursuant to Rule 41(a)(2).
    Plaintiffs filed a notice of appeal.
    In October 1999, defendants moved for
    immediate payment of all costs. The court
    granted the motion and taxed costs at
    $22,800.72. The court reiterated that
    payment of costs was a condition
    precedent to its dismissal order, and
    that the costs award would need to be
    paid regardless of the result on appeal.
    Following that decision, the plaintiffs
    moved to alter or amend the judgment
    pursuant to Rule 59. Plaintiffs also
    moved for a stay of payment pending
    appeal. On January 13, 2000, the district
    court denied plaintiffs’ motion to alter
    or amend the judgment, but granted the
    stay of payment. On February 18, 2000,
    plaintiffs filed their second notice of
    appeal, regarding the manner in which
    costs may be taxed as a condition on vol
    untarily dismissal with prejudice.
    II.   Analysis
    Plaintiffs allege that defendants are
    liable under 42 U.S.C. sec. 1983, which
    "requires proof that the defendants were
    acting under color of state law and that
    the defendants’ conduct violated the
    plaintiff’s rights, privileges, or
    immunities secured by the Constitution or
    laws of the United States." Lanigan v.
    Vill. of E. Hazel Crest, Ill., 
    110 F.3d 467
    , 471 (7th Cir. 1997) (citations
    omitted). There is no dispute that the
    defendant officers were acting under
    color of state law, thus we must examine
    whether defendants’ actions violated
    plaintiffs’ constitutional or statutory
    rights.
    We begin by reviewing the district
    court’s procedural rulings: first, the
    district court’s refusal to certify a
    class with respect to the plaintiffs’
    equal protection claims; second, the
    district court’s denial of plaintiffs’
    motion to amend their complaint to add a
    new plaintiff; and third, the district
    court’s ruling on a discovery matter. We
    then review plaintiffs’ substantive
    claims, the first alleging violations of
    the equal protection clause of the
    Fourteenth Amendment, and the second
    alleging violations of the right to
    travel. Next considered is the grant of
    summary judgment to defendant Michael
    Snyders on the issue of supervisory
    liability, followed by an analysis of the
    plaintiffs’ challenges to the resolution
    of their Title VI claims. Finally, we
    address the plaintiffs’ challenge to the
    district court’s order making the payment
    of costs a condition of voluntary
    dismissal.
    A.   Jurisdiction
    This court has jurisdiction to hear
    appeals from "final decisions" of the
    federal district courts. 28 U.S.C. sec.
    1291. An order becomes final or
    appealable upon the entry of a final
    judgment. See ITOFCA, Inc. v. MegaTrans
    Logistics, Inc., 
    235 F.3d 360
    , 363-64
    (7th Cir. 2000). "The proper appeal of a
    final judgment renews all issues
    previously pleaded and resolved by the
    trial court in litigation." Grun v.
    Pneumo Abex Corp., 
    163 F.3d 411
    , 419 (7th
    Cir. 1998) (citing In re Grabill Corp.,
    
    983 F.2d 773
    , 775 (7th Cir. 1993)), cert.
    denied, 
    526 U.S. 1087
    , 
    119 S. Ct. 1496
    ,
    
    143 L. Ed. 2d 651
     (1999). Defendants
    argue that the plaintiffs improperly
    manufactured appellate jurisdiction by
    asking the district court to voluntarily
    dismiss their claims, and thus argue that
    we have no jurisdiction to hear the
    instant appeal. We disagree. While we may
    not review claims that were dismissed
    pursuant to plaintiffs’ request for
    voluntary dismissal with prejudice, we
    will review the district court’s rulings
    with respect to the remainder of
    plaintiffs’ claims. See Gray v. Dane
    County, 
    854 F.2d 179
    , 182 (7th Cir.
    1988).
    B.   The Procedural Claims
    1.   Standard of Review
    Plaintiffs challenge a number of
    procedural rulings made by the district
    court over the course of this litigation.
    We will overturn these rulings only if we
    determine that the court abused its
    discretion. "’Abuse of discretion’ means
    something more than our belief that we
    would have acted differently if placed in
    the circumstance confronting the district
    judge." Anderson v. United Parcel Serv.,
    
    915 F.2d 313
    , 315 (7th Cir. 1990). "The
    district court’s decision must strike us
    as fundamentally wrong for an abuse of
    discretion to occur." Id. However, we
    must still "scrutinize the district
    court’s determination to ensure that it
    invoked the correct legal standards and
    that its findings of fact are not clearly
    erroneous." Salgado by Salgado v. General
    Motors Corp., 
    150 F.3d 735
    , 739 (7th Cir.
    1998).
    2.   Denial of Class Certification
    Plaintiffs originally filed this suit as
    a "civil rights class action" on August
    30, 1994. On November 7, 1995, they filed
    a motion for the certification of a class
    of persons who in the past had been, and
    in the future would be, unlawfully
    stopped, detained, and searched pursuant
    to defendants’ practice of stopping,
    detaining, and searching individuals
    traveling on highways in Illinois on the
    basis of race and without legally
    sufficient cause or justification. When
    the magistrate judge considered this
    motion he found that, in light of the
    court’s previous rulings in favor of the
    defendants’ motion for summary judgment
    on the plaintiffs’ equal protection
    claims, the motion for class
    certification was moot. See Chavez v.
    Ill. State Police, No. 94 CV 5307 (N.D.
    Ill. Sept. 25, 1997). He thus recommended
    the denial of the motion for
    certification of plaintiffs’ class
    without prejudice, with leave to
    reinstate the motion with respect to any
    claims that survived summary judgment.
    The district judge agreed and found that
    "it would be wholly illogical to consider
    the motion," considering that the class
    certification claim appeared to be
    premised on an equal protection claim
    that was no longer viable. Judge Manning
    stated that "[a] decision that the named
    plaintiffs’ claims lack merit may
    disqualify them as proper class
    representatives, thereby mooting the
    class certification question." Chavez, 
    27 F. Supp. 2d
     at 1084 (citing Cowen v. Bank
    United of Tx, 
    70 F.3d 937
    , 941 (7th Cir.
    1995)).
    The court stated that plaintiffs would
    be allowed to renew their motion if they
    elected to pursue certification based on
    the claims that survived summary
    judgment. Thus, in early 1999, plaintiffs
    sought certification of "a class
    consisting of all persons of Hispanic
    race or color" who had been or would be
    stopped in violation of Title VI. Both
    the magistrate judge and the district
    court judge found that Chavez did not
    have standing to pursue prospective
    relief. The district court judge
    determined that Chavez could not,
    therefore, represent a class of Hispanic
    motorists seeking such relief and
    dismissed plaintiffs’ motion. While
    plaintiffs assert that this was error,
    the plaintiffs requested and were granted
    a voluntary dismissal of their Title VI
    claims. We will thus not review the
    district court’s refusal to certify a
    class with respect to those claims.
    Plaintiffs argued before the district
    court, and continue to assert on appeal,
    that they were entitled to a ruling on
    the motion for class certification before
    the district court considered the
    defendant’s motion for partial summary
    judgment on the plaintiffs’ equal
    protection claims. The district court
    disagreed. The court noted that a ruling
    on summary judgment may properly precede
    a ruling on a motion for class
    certification. Id. at 1085. Though
    recognizing that "an accelerated merits
    disposition may be preferable when the
    court considers the merits before ruling
    on a motion for class certification," the
    court stated that the delay was "largely
    attributable to the plaintiffs." Id.
    We conduct a deferential review of the
    denial of plaintiffs’ motion to certify a
    class. Under the Federal Rules of Civil
    Procedure, "a district court has broad
    discretion to determine whether
    certification of a class-action lawsuit
    is appropriate." Mira v. Nuclear
    Measurements Corp., 
    107 F.3d 466
    , 474
    (7th Cir. 1997) (citing Ret. Chi. Police
    Ass’n v. City of Chi., 
    7 F.3d 584
    , 596
    (7th Cir. 1993)). In most circumstances,
    a judge should determine whether to grant
    or deny certification prior to ruling on
    the merits, as indicated by the text of
    Rule 23: "As soon as practicable after
    the commencement of an action brought as
    a class action, the court shall determine
    by order whether it is to be so
    maintained." Fed. R. Civ. P. 23(c). This is
    the preferred policy as "the propriety of
    class certification does not depend on
    the outcome of the suit. . . . It is
    therefore difficult to imagine cases in
    which it is appropriate to defer class
    certification until after decision on the
    merits." Bieneman v. City of Chi., 
    838 F.2d 962
    , 964 (7th Cir. 1988) (citations
    omitted). We have since noted, however,
    that such situations do exist. If "as
    soon as practicable" occurs after a case
    is already "ripe for summary judgment"
    then it might be proper for a judge to
    consider a motion for summary judgment
    prior to considering a motion for class
    certification. Cowen, 70 F.3d at 941
    (citations omitted). Where this situation
    occurs, if the court determines that the
    named plaintiffs’ claims lack merit, such
    a decision "ordinarily, though not
    invariably, . . . disqualifies the named
    plaintiffs as proper class
    representatives," thus resolving the
    issue of class certification. Cowen, 70
    F.3d at 941 (citations omitted).
    As noted by the district court,
    plaintiffs requested and were granted
    numerous stays with respect to the
    summary judgment motions before the
    court. In response to plaintiffs’
    frustration with the delayed
    consideration of their class
    certification motion, the district court
    simply noted that the plaintiffs’ actions
    caused the delay. Yet this response
    obscures the fact that it was the
    district court’s decision to consider the
    summary judgment motions before the class
    certification motion that led to the
    delayed consideration of the latter.
    Indeed, this is why it is preferable to
    review a motion for class certification
    first; a quick disposition on the merits
    is often not possible. Nonetheless,
    "[w]hile we agree that it is the better
    policy for the district court to dispose
    of a motion for class certification
    promptly and before ruling on the merits
    of the case, the failure to follow this
    preferred procedure does not necessarily
    amount to reversible error." Mira, 107
    F.3d at 475. We must thus examine whether
    the delay in ruling was such that it rose
    to reversible error.
    The denial of class certification was
    premised on the district court’s finding
    that the named plaintiffs lacked standing
    to seek injunctive relief, a finding
    partially linked to the fact that Chavez
    had not returned to Illinois and had not
    been stopped since the original stop in
    1993. Plaintiffs allege that, if the
    district court had ruled on class
    certification as soon as practicable, the
    mootness of Chavez’s claim would not have
    prevented the class members from proceed
    ing. Yet, even if this were true, the
    class would not have prevailed on the
    merits. The plaintiffs’ litigation
    strategy was to present statistics as the
    basis for their claims, and as we explain
    in Parts II.D.1.c and II.D.2 below, these
    statistics are not sufficient to prove a
    violation of the equal protection clause
    of the Fourteenth Amendment. This
    determination would have been made
    regardless of whether this lawsuit was
    certified as a class action or not.
    "[A]lthough the procedural method chosen
    by the district judge is not the one
    favored under Rule 23, we refuse to
    disturb [her] denial of class
    certification because [ ] the plaintiffs’
    underlying claims clearly lack merit, as
    evidenced by our affirmance of the
    district court’s summary judgment rulings
    . . . ." Myra, 107 F.3d at 475. We thus
    find that the district court did not
    abuse its discretion in denying the
    plaintiffs’ motion for class
    certification with respect to the equal
    protection claims.
    3. Denial of Motion to Add Christopher
    Jimenez as a Class Representative
    Plaintiffs also challenge the district
    court’s denial of their motion to add
    Christopher Jimenez as a class
    representative. On February 6, 1996,
    Christopher Jimenez, who is Hispanic, and
    his fiance, Stacie Tiffany, who is white,
    were driving northbound on I-55 in
    Sangamon County, Illinois, in Tiffany’s
    car. Tiffany was driving and admits that
    she was exceeding the speed limit.
    Jimenez alleges that ISP Trooper Robert
    Jennings, a Valkyrie officer, was parked
    at the side of the road looking at them
    with binoculars. Trooper Jennings admits
    that he has been able to detect the race
    of an occupant of a vehicle by using his
    binoculars in the past. Jennings saw but
    did not stop "hundreds" of other speeders
    that day. Jennings Dep. at 42. He
    explained that Tiffany’s speeding and the
    fact that a male passenger was slumping
    in the front seat while wearing a
    baseball cap drew his attention to
    Tiffany’s vehicle.
    Jennings followed the vehicle and saw
    Tiffany fail to signal prior to changing
    lanes. He then stopped her, stating that
    he did so because she was speeding and
    failed to signal properly. He asked both
    Tiffany and Jimenez for their drivers’
    licenses and asked Tiffany questions
    about the nature of her relationship with
    Jimenez. According to Trooper Jennings,
    he is more likely to ask questions about
    the relationship between vehicle
    occupants if they are of different races.
    Although Jennings testified that he did
    not have a "suspicion" or a "strong
    feeling" that contraband was in the
    vehicle, he asked Tiffany for her
    permission to search her car. Plaintiffs
    say Jennings justified his request by
    explaining that "in the past we had made
    drug seizures from mixed race couples."
    Jennings Dep. at 76. Tiffany consented.
    Jennings inspected and patted down the
    soft-surface bags in the trunk and patted
    down the area where the convertible’s top
    is stored. He did not discover any
    contraband. Jimenez filed a written
    complaint with the ISP one week later,
    which the ISP deemed unfounded.
    Nonetheless, Jennings received counseling
    to make him aware that what he says can
    impact negatively upon the public,
    regardless of his intent. While Jimenez
    resides in Michigan, plaintiffs allege
    that he travels on Illinois highways
    several times per year, although his
    prior experience with the ISP has so
    intimidated him that he avoids I-55.
    The plaintiffs identified Jimenez as
    part of the putative plaintiff class in
    July 1996, when they filed their fourth
    amended class action complaint. Almost
    three years later, on April 2, 1999, the
    plaintiffs moved to add Jimenez as a new
    named plaintiff pursuant to Rules 15(a)
    and 21 of the Federal Rules of Civil
    Procedure. The plaintiffs’ motion was
    untimely, to say the least: fact
    discovery had closed in August 1997, a
    final pre-trial order was scheduled to be
    filed on July 15, 1999, and the trial
    date was set for September 7, 1999.
    Magistrate Judge Bobrick denied the
    plaintiffs’ motion. Although he concluded
    that the plaintiffs met the literal
    standard for joinder set forth in Rule
    20(a), he determined that the court had
    discretion to deny a motion for joinder
    "where it would cause delay, prejudice,
    or expense" and found that adding a
    plaintiff would do all of those things.
    Chavez v. Ill. State Police, No. 94 CV
    5307, slip op. at 2 (N.D. Ill. June 4,
    1999). He noted that plaintiffs had known
    about Jimenez’s claims for nearly three
    years but offered no explanation as to
    why they were unable to add Jimenez as a
    named plaintiff earlier. Plaintiffs
    objected to the magistrate’s order, but
    on appeal, the district judge found that
    the order was not clearly erroneous,
    agreeing that joinder of Jimenez would be
    prejudicial and that the plaintiffs
    delayed in seeking to add him as a named
    plaintiff. The district judge echoed the
    magistrate judge’s observation that
    "while motions to amend a complaint are
    ordinarily granted, this is not an
    ordinary case." Chavez v. Ill. State
    Police, No. 94 CV 5307, 
    1999 WL 515483
    ,
    at *5 (N.D. Ill. July 15, 1999).
    Again, we review the district court’s
    ruling for abuse of discretion. No one
    disputes that joinder of Jimenez would be
    proper under the text of Rule 20. What is
    contested is whether the district court
    abused its discretion to deny leave to
    amend the complaint so that plaintiffs
    could join a party./4 Where a responsive
    pleading has already been served, "a
    party may amend the party’s pleading only
    by leave of court or by written consent
    of the adverse party; and leave shall be
    freely given when justice so requires."
    Fed. R. Civ. P. 15(a). However, "leave to
    amend need not be given if there is an
    apparent reason not to do so, such as
    ’undue delay, bad faith or dilatory
    motive on the part of the movant,
    repeated failure to cure deficiencies by
    amendments previously allowed, undue
    prejudice to the opposing party by virtue
    of allowance of the amendment, [or]
    futility of amendment.’" Payne v.
    Churchich, 
    161 F.3d 1030
    , 1036 (7th Cir.
    1998), cert. denied, 
    527 U.S. 1004
    , 
    119 S. Ct. 2339
    , 
    144 L. Ed. 2d 236
     (1999)
    (quoting Foman v. Davis, 
    371 U.S. 178
    ,
    182, 
    83 S. Ct. 227
    , 
    9 L. Ed. 2d 222
    (1962)).
    Similarly, we also accord wide
    discretion to a district court’s decision
    concerning the joinder of parties. See
    Intercon Research Assoc., Ltd. v. Dresser
    Indus., Inc., 
    696 F.2d 53
    , 56 (7th Cir.
    1982). We have recognized that this
    discretion allows a trial court to
    consider, in addition to the requirements
    of Rule 20, "’other relevant factors in
    a case in order to determine whether the
    permissive joinder of a party will
    comport with the principles of
    fundamental fairness.’" Id. at 58
    (quoting Desert Empire Bank v. Ins. Co.
    of N. Am., 
    623 F.2d 1371
    , 1375 (9th Cir.
    1980)). If joinder would create
    "prejudice, expense or delay" the court
    may deny the motion. Charles Alan Wright, et
    al., Federal Practice and Procedure sec. 1652
    at 396 (2001).
    The district court conducted a reasoned
    analysis of whether joinder was
    appropriate and determined that it would
    be fundamentally unfair to the defendants
    to add Jimenez as a named plaintiff. The
    court found that three factors weighed in
    favor of granting the motion: plaintiffs
    had a legitimate reason for requesting
    joinder in that they wished to substitute
    Jimenez for one of the formerly named
    Hispanic plaintiffs who had been dropped
    from the action; Jimenez was already
    party to the action and was thus closely
    related; and jurisdiction would not be
    affected. Several additional factors,
    however, weighed in favor of denying the
    motion.
    The court determined that joinder would
    be heavily prejudicial to the defendants,
    as it would require, at a minimum,
    further deposition testimony. Although
    Jimenez had been deposed in 1997, it was
    by telephone, and was much less searching
    than the depositions of the named
    plaintiffs. While plaintiffs argued that
    they would allow additional depositions
    of Jimenez, the court dismissed this
    offer:
    Contrary to the plaintiffs’ position
    throughout much of this case, discovery
    deadlines do not exist only to be
    extended. The court is entitled both to
    set deadlines and to expect that they
    will be honored, especially when the
    plaintiffs are before the court in 1999
    shortly before trial seeking to extend a
    1997 cut off based on events happening
    and known to them in 1996.
    Chavez, 
    1999 WL 515483
    , at *3. The other
    factors weighing in favor of denying the
    motion were that Jimenez clearly had
    notice of the pending action yet
    plaintiffs did not attempt to join him
    earlier. "The plaintiffs knew of Jimenez
    and his claims for nearly three years,
    and for over one year before the close of
    fact discovery in 1997 but waited until
    approximately two months prior to trial
    to seek to add him as a plaintiff. If
    this is not delay, nothing is." Id. at
    *4. The plaintiffs proffered explanation
    for this delay--that they were waiting
    for the resolution of a discovery related
    interlocutory appeal to this Court--was
    not presented to the magistrate judge and
    was properly dismissed by the district
    court. While plaintiffs assert that delay
    alone is an insufficient reason to deny
    their proposed amendment, there is a "a
    sufficient basis for denial of leave to
    amend . . . when the delay has caused the
    opposing party undue prejudice." Textor
    v. Bd. of Regents of N. Ill. Univ., 
    711 F.2d 1387
    , 1391 (7th Cir. 1983).
    We find that the district court judge
    did not abuse her discretion in denying
    the plaintiffs’ motion to amend their
    complaint to add Jimenez as a named
    plaintiff.
    4. Conditioning Third Party Discovery
    on Payment of $160,000
    On February 9, 1997, the plaintiffs
    served a subpoena on the Illinois
    Secretary of State seeking production of
    eight million electronically stored
    records containing names, addresses, and
    related information for Illinois licensed
    drivers. Plaintiffs intended to use this
    information as a basis for statistical
    analysis in support of their Title VI
    claims. The Secretary of State objected
    to the subpoena, noting that the
    plaintiffs had not paid the statutorily
    required fee. Plaintiffs asserted that
    they had assumed the role of private
    attorneys general, and therefore should
    not have to pay the fee charged to
    private entities; instead, they argued
    that they should be treated as a
    governmental entity and pay only the
    actual cost for the information. When
    plaintiffs then moved to compel
    production, the magistrate judge denied
    the motion. See Chavez v. Ill. State
    Police, No. 94 CV 5307 (N.D. Ill. March
    6, 1997). The district judge reviewed the
    magistrate’s ruling and concluded that it
    was proper. See Chavez v. Ill. State
    Police, No. 94 CV 5307 (N.D. Ill. Jan.
    14, 1999); Chavez v. Ill. State Police,
    No. 94 CV 5307 (N.D. Ill. Dec. 30, 1998).
    The defendants’ motion to quash the
    subpoena was subsequently granted. See
    Chavez v. Ill. State Police, No. 94 CV
    5307 (N.D. Ill. Jan. 28, 1999).
    As we have already noted, plaintiffs’
    Title VI claims are not before the court.
    Even if the requested data were intended
    to support the equal protection or right
    to travel claims, however, all discovery
    issues are moot in light of our
    disposition of these claims. Thus we need
    not review this issue.
    C. Lee’s Identification of the ISP
    Troopers
    As an initial matter, defendants contend
    that Troopers Lauterbach and Fraher did
    not stop Lee, and ask for a dismissal
    based on the threshold unreliability of
    Lee’s eyewitness identifications. Lee was
    not issued a citation or warning, thus he
    received no documentation of the stops.
    To determine the names of the officers
    who had stopped him, he looked at an
    array of photographs of Illinois State
    Police personnel, assembled by the ISP.
    Lee viewed these photos on two separate
    occasions, the first was about seventeen
    months after he was allegedly stopped by
    Fraher and over twenty-three months after
    he was allegedly stopped by Lauterbach.
    On both occasions, Lee identified
    Lauterbach and Fraher as the ISP troopers
    who stopped, detained, and searched him
    in March and August of 1993,
    respectively.
    The ISP denies that these stops ever
    occurred. First, Lauterbach and Fraher
    claim that they do not recall stopping,
    detaining, or searching Lee. Second, the
    ISP states that they have no record of
    any traffic stop of Lee by Lauterbach or
    Fraher, and no record of either of these
    officers issuing Lee a citation or
    warning. Third, defendants contend that
    the officers were not patrolling the
    relevant roads on the dates Lee alleges
    he was stopped. Finally, the ISP claims
    that Lee’s identifications of Lauterbach
    and Fraher are inherently unreliable,
    pointing to allegedly serious
    deficiencies in Lee’s identifications of
    the pertinent officers.
    With respect to the first argument, the
    officers do not claim that they did not
    stop Lee, only that they do not recall
    doing so. They have produced no evidence
    definitively establishing that they were
    not present when Lee was stopped. Second,
    the ISP has admitted that records are not
    generated for all stops; without issuance
    of a citation or warning a record might
    not be generated./5 Third, Fraher
    testified that he patrolled I-80 at the
    relevant time. While ISP records indicate
    that Lauterbach was not working during
    part of the time period in which he is
    alleged to have stopped Lee, and that
    during the remainder of this period he
    was patrolling other roads, the ISP has
    admitted that troopers sometimes stop
    vehicles outside their patrol areas.
    Finally, we can not conclude that Lee’s
    identifications are so flawed as to be
    inherently unreliable. The district court
    concluded that Lee’s testimony created a
    genuine question of material fact and was
    thus sufficient to withstand summary
    judgment. See Chavez v. Ill. State
    Police, 
    27 F. Supp. 2d 1053
    , 1079 (N.D.
    Ill. 1998). We agree. While Lee’s
    descriptions of troopers Lauterbach and
    Fraher contain certain inaccuracies,/6
    we will not resolve credibility disputes
    on a motion for summary judgment. See
    Anderson v. Liberty Lobby, Inc., 
    477 U.S. 242
    , 255, 
    106 S. Ct. 2505
    , 
    91 L. Ed. 2d 202
     (1986); Ritchie v. Glidden Co., 
    242 F.3d 713
    , 723 (7th Cir. 2001). Thus, we
    proceed to the merits of the plaintiffs’
    equal protection claims.
    D. The Fourteenth Amendment
    Equal Protection Claims
    In November 1998, after over four years
    of litigation, the district court granted
    the defendants’ motion for summary
    judgment on the plaintiffs’ equal
    protection claims. We review de novo
    grants of summary judgment. See Myers v.
    Hasara, 
    226 F.3d 821
    , 825 (7th Cir.
    2000). Summary judgment is proper when
    "the pleadings, depositions, answers to
    interrogatories, and admissions on file,
    together with the affidavits, if any,
    show that there is no genuine issue as to
    any material fact and that the moving
    party is entitled to a judgment as a
    matter of law." Fed. R. Civ. P. 56(c); see
    also Celotex Corp. v. Catrett, 
    477 U.S. 317
    , 322-23, 
    106 S. Ct. 2548
    , 
    91 L. Ed. 2d
     265 (1986). In determining whether a
    genuine issue of material fact exists, we
    construe all facts and inferences in the
    light most favorable to the non-moving
    party, drawing all reasonable and
    justifiable inferences in favor of that
    party. See Anderson v. Liberty Lobby,
    Inc., 
    477 U.S. 242
    , 255, 
    106 S. Ct. 2505
    ,
    
    91 L. Ed. 2d 202
     (1986). If, however, the
    record as a whole "could not lead a
    rational trier of fact to find for the
    non-moving party, there is no ’genuine
    issue for trial.’" Matsushita Elec.
    Indus. Co. v. Zenith Radio Corp., 
    475 U.S. 574
    , 587, 
    106 S. Ct. 1348
    , 
    89 L. Ed. 2d
     538 (1986); see also Lindemann v.
    Mobil Oil Corp., 
    141 F.3d 290
    , 294 (7th
    Cir. 1998).
    Plaintiffs assert that the ISP and
    individual ISP officers utilize
    impermissible racial classifications in
    determining whom to stop, detain, and
    search. Were this proven, it would amount
    to a violation of the Equal Protection
    Clause of the Fourteenth Amendment. See
    Whren v. United States, 
    517 U.S. 806
    ,
    813, 
    116 S. Ct. 1769
    , 
    135 L. Ed. 2d 89
    (1996) ("[T]he Constitution prohibits
    selective enforcement of the law based on
    considerations such as race . . . . [T]he
    constitutional basis for objecting to
    intentionally discriminatory application
    of laws is the Equal Protection
    Clause."). The Supreme Court, as well as
    federal courts across the country, have
    begun to address the potential
    implications of racial profiling. See
    Illinois v. Wardlow, 
    120 S. Ct. 673
    , 681
    n.10 (2000) (discussing the conclusion of
    the New Jersey Attorney General that
    "minority motorists have been treated
    differently than non-minority motorists
    during the course of traffic stops on the
    New Jersey Turnpike"); United States v.
    Montero Camargo, 
    208 F.3d 1122
    , 1135 (9th
    Cir. 2000) (en banc) (discussing "[s]tops
    based on race or ethnic appearance");
    Martinez v. Vill. of Mount Prospect, 
    92 F. Supp. 2d 780
    , 782 (N.D. Ill. 2000)
    ("Racial profiling of any kind is
    anathema to our criminal justice system .
    . . ."); United States v. Leviner, 31 F.
    Supp. 2d 23, 33 (D. Mass. 1998) ("Motor
    vehicle offenses, in particular, raise
    deep concerns about racial
    disparity.")./7
    Even civil rights litigation must,
    however, satisfy the requirements of our
    equal protection jurisprudence. To show a
    violation of the Equal Protection Clause,
    plaintiffs must prove that the
    defendants’ actions had a discriminatory
    effect and were motivated by a
    discriminatory purpose. See Pers. Adm’r
    of Mass. v. Feeney, 
    442 U.S. 256
    , 272-74,
    
    99 S. Ct. 2282
    , 
    60 L. Ed. 2d 870
     (1979);
    Arlington Heights v. Metro. Housing Dev.
    Corp., 
    429 U.S. 252
    , 264-66, 
    97 S. Ct. 555
    , 
    50 L. Ed. 2d 450
     (1977); Washington
    v. Davis, 
    426 U.S. 229
    , 239-42, 242, 
    96 S. Ct. 2040
    , 
    48 L. Ed. 2d 597
     (1976). We
    examine each element in turn.
    1.   Discriminatory Effect
    To prove discriminatory effect, the
    plaintiffs are required to show that they
    are members of a protected class, that
    they are otherwise similarly situated to
    members of the unprotected class, and
    that plaintiffs were treated differently
    from members of the unprotected class.
    See Greer v. Amesqua, 
    212 F.3d 358
    , 370
    (7th Cir. 2000), cert denied, 
    121 S. Ct. 568
    , 
    148 L. Ed. 2d 487
     (2000); Johnson v.
    City of Fort Wayne, Ind., 
    91 F.3d 922
    ,
    944-45 (7th Cir. 1996). Chavez and Lee
    may show that the ISP treated them
    differently than other similarly situated
    individuals by naming such individuals or
    through the use of statistics, an issue
    which we explore in greater depth below.
    See, e.g., United States v. Armstrong,
    
    517 U.S. 456
    , 467, 
    116 S. Ct. 1480
    , 
    134 L. Ed. 2d 687
     (1996) (noting that the
    similarly situated requirement was met by
    the "indisputable evidence" in Hunter v.
    Underwood, 
    471 U.S. 222
    , 
    105 S. Ct. 1916
    ,
    
    85 L. Ed. 2d 222
     (1985), that Blacks were
    1.7 times as likely as whites to suffer
    disfranchisement under the law in
    question).
    a. Naming a Similarly Situated
    Individual
    Lee did not attempt to name a similarly
    situated individual who was not stopped
    or searched. Chavez alleges that
    Katherine Austin--the white female from
    the public defender’s office who was
    following him at the time of his stop--
    was a similarly situated individual
    treated differently. To determine whether
    Austin was similarly situated to Chavez
    we "must look at all relevant factors,
    the number of which depends on the
    context of the case." Radue v. Kimberly-
    Clark Corp., 
    219 F.3d 612
    , 617 (7th Cir.
    2000).
    While we have repeatedly discussed the
    similarly situated requirement in the
    context of employment discrimination
    cases, these discussions are rarely
    extensive and do not provide any magic
    formula for determining whether someone
    is similarly situated. This is due,
    seemingly, to the essentially factual
    nature of the inquiry. Different factors
    will be relevant for different types of
    inquiries--it would be imprudent to turn
    a common-sense inquiry into a complicated
    legal one. In determining who is
    similarly situated, we have also been
    careful not to define the requirement too
    narrowly. See, e.g., Freeman v. Madison
    Metro. Sch. Dist., 
    231 F.3d 374
    , 382-83
    (7th Cir. 2000); cf. Radue, 219 F.3d at
    619 (noting that the similarly situated
    requirement requires employees to
    demonstrate that they shared "common
    features essential to a meaningful
    comparison" to ensure that the employee
    who received the more favorable treatment
    was similarly situated).
    Defendants allege that George
    Koutsakis--the individual stopped by the
    ISP whom Chavez was emulating--was a
    similarly situated individual who was
    treated the same as Chavez. The district
    court agreed, and determined that Chavez
    failed to show that he was treated any
    differently than a similarly situated
    white motorist. See Chavez v. Ill. State
    Police, 
    27 F. Supp. 2d 1053
    , 1067 (N.D.
    Ill. 1998). The district court found that
    Austin was not similarly situated because
    she was female, drove a different color
    car with a non-California plate, did not
    have the same items visible in her car,
    and did not receive a warning ticket. See
    id. The court also stated that "the fact
    that [Austin] was following Chavez
    essentially prevented Trooper Thomas from
    subjecting her to the same treatment as
    Chavez--he was engaged with Chavez at the
    time." Chavez v. Ill. State Police, No.
    94 CV 5307, slip op. at 22 (N.D. Ill.
    July 10, 1997).
    We do not agree with the district
    court’s treatment of this issue. The
    relevant inquiry is whether a similarly
    situated individual was treated
    differently than the plaintiff, not
    whether one white motorist was subjected
    to the same unlawful treatment. Allowing
    defendants to escape liability for
    discriminating against Hispanics simply
    because they occasionally mistreat white
    motorists would dismantle our equal
    protection jurisprudence. The fact that
    Koutsakis was also stopped is simply
    irrelevant to the inquiry of whether
    Chavez has shown that a similarly
    situated individual was treated
    differently.
    Quite to the contrary of defendants’ and
    the district court’s assertions, Chavez
    and Austin were similarly situated in all
    pertinent respects. Both were driving
    down the same stretch of I-80 at the same
    time, and neither committed a traffic
    violation (defendants have conceded that
    Chavez did not commit a violation for the
    purpose of summary judgment). The factors
    that distinguish Austin from Chavez do
    not prevent her from being similarly
    situated. First, the ISP can not legally
    decide whom to stop on the basis of
    gender any more than they can do so on
    the basis of race, thus the fact that
    Austin is female is not pertinent.
    Second, nothing in the record indicates
    that Trooper Thomas stopped Chavez
    because he was driving a red car, or
    because he was driving a rental car, or
    because it was a car with California
    plates. To the contrary, the ISP asserts
    that Valkyrie officers do not stop
    motorists on the basis of these
    variables, and plaintiffs have agreed.
    Third, the objects inside Chavez’s
    vehicle that raised officer suspicion--
    i.e. the small suitcase, fast food bags,
    and atlas--were not visible until after
    Chavez was pulled over, thus they could
    not have been the basis for the stop.
    Finally, the fact that Thomas was engaged
    with Chavez does not prevent Austin from
    being similarly situated. The whole point
    of the plaintiffs’ claim is that after
    thirty minutes of trailing the two
    vehicles, Thomas stopped Chavez, who is
    Hispanic, rather than Austin, who is
    white.
    We thus find that Austin is a similarly
    situated individual of an unprotected
    class who was treated differently than
    Chavez. That Lee has not been able to
    name a similarly situated individual
    treated differently does not, however,
    end our review of his claims. Plaintiffs
    attempt to show that similarly situated
    individuals were treated differently than
    both Chavez and Lee through the use of
    statistics. The district court would not
    allow plaintiffs to use statistics for
    this purpose, based upon that court’s
    interpretation of United States v.
    Armstrong, 
    517 U.S. 456
    , a recent Supreme
    Court case addressing the effects prong
    of the equal protection test. We do not
    agree with the district court’s
    interpretation of Armstrong or its
    application of Armstrong to the facts of
    this case.
    b. Use of Statistics to Show
    Discriminatory Effect
    The Supreme Court has long noted the
    importance of statistical analysis "in
    cases in which the existence of
    discrimination is a disputed issue."
    Int’l Bhd. of Teamsters v. United States,
    
    431 U.S. 324
    , 339, 
    97 S. Ct. 1843
    , 52 L.
    Ed. 2d 396 (1977)./8 While few opinions
    directly acknowledge that statistics may
    be used to prove discriminatory effect,
    the Court has repeatedly relied on
    statistics to do just that. See, e.g.,
    Yick Wo v. Hopkins, 
    118 U.S. 356
    , 374, 
    6 S. Ct. 1064
    , 
    30 L. Ed. 220
     (1886)
    (finding that a San Francisco ordinance
    banning the operation of laundries in
    wooden buildings was discriminatorily
    applied to Chinese launderers where the
    city denied the petitions of some two
    hundred Chinese applicants who applied
    for exemption from the ordinance, but
    granted all but one of the eighty
    petitions of the non-Chinese launderers
    who applied); Hunter v. Underwood, 
    471 U.S. 222
    , 227, 
    105 S. Ct. 1916
    , 
    85 L. Ed. 2d
     222 (1985) (finding that the fact that
    a section of the Alabama Constitution
    made disenfranchisement of blacks at
    least 1.7 times more likely than
    disenfranchisement of whites was
    "indisputable evidence that the state law
    had a discriminatory effect on blacks as
    compared to similarly situated
    whites")./9 Of course, parties may not
    prove discrimination merely by providing
    the court with statistical analyses. The
    statistics proffered must address the
    crucial question of whether one class is
    being treated differently from another
    class that is otherwise similarly
    situated. See, e.g., Schweiker v. Wilson,
    
    450 U.S. 221
    , 233, 
    101 S. Ct. 1074
    , 67 L.
    Ed. 2d 186 (1981) (noting that the
    plaintiffs did not offer any "statistical
    support for a contention that the
    mentally ill as a class are burdened dis
    proportionately to any other class").
    Further, "statistics are not irrefutable;
    they come in infinite variety and, like
    any other kind of evidence, they may be
    rebutted. In short, their usefulness
    depends on all of the surrounding facts
    and circumstances." Teamsters, 431 U.S.
    at 340.
    The Supreme Court’s decision in
    Armstrong did not depart from this
    precedent. Armstrong settled a dispute
    among the circuits by holding that
    criminal defendants bringing selective
    prosecution claims must show that
    similarly situated individuals were not
    prosecuted, in order to obtain discovery
    in support of their claim. Armstrong, 517
    U.S. at 468-69. The decision reversed a
    Ninth Circuit opinion which held that a
    defendant did not have to demonstrate
    that the government had failed to
    prosecute others who were similarly
    situated; indeed, this was in contrast to
    the holdings of numerous other courts of
    appeals, including this one, that
    "require[d] the defendant to produce some
    evidence that similarly situated
    defendants of other races could have been
    prosecuted, but were not." Id. at 469
    (citing, inter alia, United States v.
    Mitchell, 
    778 F.2d 1271
    , 1277 (7th Cir.
    1985)). The Supreme Court made clear that
    the similarly situated requirement could
    not be discarded, reaffirming that the
    requirement of showing discriminatory
    effect is a long established requirement
    in our jurisprudence. Id. at 455. The
    district court in this case correctly
    determined that the Supreme Court
    rejected the statistics proffered by the
    plaintiffs in Armstrong. See Chavez v.
    Ill. State Police, 
    27 F. Supp. 2d 1053
    ,
    at 1066-67 (N.D. Ill. 1998). The
    statistics were rejected, however, not
    because plaintiffs can never use
    statistics to prove discriminatory
    effect, but because the particular
    statistics presented to the Court did not
    address the relevant issue. The criminal
    defendants in Armstrong introduced an
    affidavit claiming that "in every one" of
    the twenty-four cases handled by the
    public defender’s office in 1991 for
    violations of 21 U.S.C. sec.sec. 841 and
    846, the defendant was African-American.
    See Armstrong, 517 U.S. at 459. The Court
    explained: "The study failed to identify
    individuals who were not black and could
    have been prosecuted for the offenses for
    which respondents were charged, but were
    not so prosecuted." Id. at 470.
    Presumably, then, if the study had
    demonstrated that whites were arrested
    and could have been prosecuted but were
    not, the Court would have found the study
    more useful. The Court pointed out that
    "respondents could have investigated
    whether similarly situated persons of
    other races were prosecuted by the State
    of California and were known to federal
    law enforcement officers, but were not
    prosecuted in federal court." Id. In
    light of Armstrong, statistics
    demonstrating that whites stopped for
    traffic violations were not detained and
    searched, even those who displayed
    indicators of drug trafficking, while
    similarly situated African-American or
    Hispanics drivers were detained and
    searched, would be sufficient to show
    discriminatory effect.
    The district court noted that "at least
    three appellate court decisions have
    rejected statistical evidence that failed
    to identify similarly situated
    individuals of races other than that of
    the equal protection plaintiffs." Chavez
    v. Ill. State Police, No. 94 CV 5307, at
    18 (N.D. Ill. July 10, 1997) (citing
    United States v. Turner, 
    104 F.3d 1180
    (9th Cir. 1997); United States v. Berger,
    
    103 F.3d 67
     (9th Cir. 1996); United
    States v. Olvis, 
    97 F.3d 739
     (4th Cir.
    1996)). While the courts in these cases
    rejected the statistics presented, they
    did not reject, as a matter of law, the
    use of statistical evidence. In two of
    the cases the statistics were simply held
    to be insufficient, just like in
    Armstrong. See Turner, 104 F.3d at 1184-
    85 (finding that the defendants-- who
    relied, in part, upon the same data found
    to be inadequate in Armstrong--had not
    shown "that similarly-situated defendants
    of other races had been left
    unprosecuted"); Olvis, 97 F.3d at 745
    (finding that defendant’s study "provided
    no statistical evidence on the number of
    blacks who were actually committing crack
    cocaine offenses or whether a greater
    percentage of whites could have been
    prosecuted for such crimes"). The
    defendant in the third case did not even
    attempt "to provide credible evidence
    that similarly situated persons of other
    races could have been prosecuted but were
    not." Berger, 103 F.3d at 72.
    Additionally, it is worth noting that all
    three were criminal cases in which the
    defendants were seeking discovery in
    support of a selective prosecution claim.
    Even if Armstrong is read to require a
    criminal defendant in a selective
    prosecution case to provide the precise
    name of a similarly situated defendant
    who was not prosecuted (a possible but
    unnecessary reading), the rationale
    behind such a requirement does not apply
    with equal force in the context of a
    civil racial profiling claim. While the
    district court determined that Chavez and
    Lee’s allegations of racial profiling
    were analogous to selective prosecution
    claims, we find that numerous differences
    between the two types of claims make the
    former distinguishable.
    First, the Armstrong court noted that
    "[t]he similarly situated requirement
    does not make a selective-prosecution
    claim impossible to prove." Armstrong,
    517 U.S. at 466. In a civil racial
    profiling case, however, the similarly
    situated requirement might be impossible
    to prove. In a meritorious selective
    prosecution claim, a criminal defendant
    would be able to name others arrested for
    the same offense who were not prosecuted
    by the arresting law enforcement agency;
    conversely, plaintiffs who allege that
    they were stopped due to racial profiling
    would not, barring some type of test
    operation, be able to provide the names
    of other similarly situated motorists who
    were not stopped.
    A second distinction between this case
    and Armstrong is the factual context. The
    opinion in Armstrong allotted much of its
    analysis to discussing the nature of
    selective prosecution claims and the
    considerations inherent in such claims.
    The analysis is narrowly focused on the
    constitutional implications of
    interfering with the prosecutorial
    function, a factor at the heart of a
    criminal defendant’s claim of selective
    prosecution, but not directly at issue in
    a plaintiff’s civil claim of racial
    profiling. The Court described in detail
    the constraints imposed upon courts
    considering claims of selective
    prosecution:
    A selective-prosecution claim asks a
    court to exercise judicial power over a
    "special province" of the Executive. The
    Attorney General and the United States
    Attorneys retain "broad discretion" to
    enforce the Nation’s criminal laws. They
    have this latitude because they are
    designated by statute as the President’s
    delegates to help him discharge his
    constitutional responsibility to "take
    Care that the Laws be faithfully
    executed." As a result, "the presumption
    of regularity supports" their
    prosecutorial decisions and, "in the
    absence of clear evidence to the
    contrary, courts presume that they have
    properly discharged their official
    duties." In the ordinary case, "so long
    as the prosecutor has probable cause to
    believe that the accused committed an
    offense defined by statute, the decision
    whether or not to prosecute, and what
    charge to file or bring before a grand
    jury, generally rests entirely in his
    discretion."
    . . . .
    In order to dispel the presumption that
    a prosecutor has not violated equal
    protection, a criminal defendant must
    present "clear evidence to the contrary."
    . . . Judicial deference to the decisions
    of these executive officers rests in part
    on an assessment of the relative
    competence of prosecutors and courts. . .
    . It also stems from a concern not to
    unnecessarily impair the performance of a
    core executive constitutional function.
    Armstrong, 517 U.S. at 464-65 (citations
    omitted).
    In short, Armstrong emphasized both the
    discretion accorded to prosecutors and
    the fact that it would not be impossible
    to name a similarly situated individual
    treated differently in the context of a
    selective prosecution claim. We find
    that, although Armstrong is reasonably
    read to require criminal defendants to
    name an individual who was not
    prosecuted, the instant case involves
    police conduct, not prosecutorial
    discretion, and is in a civil, not
    criminal, context. This case is thus not
    like Armstrong. Therefore, plaintiffs do
    not have to provide the court with the
    name of an individual who was not
    stopped; instead they may attempt to use
    statistics to show that the ISP treated
    them differently than other motorists who
    were similarly situated. While it is true
    that statistics alone rarely state a
    violation of equal protection--indeed,
    only in the Title VII or jury venire
    context is this possible, as discussed
    infra--they can be sufficient to
    establish discriminatory effect.
    c.   The Plaintiffs’ Statistics
    Given our foregoing conclusions, we must
    now examine the statistics proffered by
    the plaintiffs. The pertinent inquiry is
    whether Operation Valkyrie troopers stop,
    detain, and search African-American and
    Hispanic motorists when the troopers do
    not stop, detain, and search similarly
    situated white motorists. Plaintiffs
    contend that this question must be
    answered in the affirmative. They allege
    that their statistics show that African-
    American and Hispanic motorists are
    stopped at a significantly higher rate
    than are white motorists, based upon the
    representation of these groups both in
    the Illinois population and on Illinois
    roads, thus evidencing a disproportionate
    impact upon African-American and Hispanic
    motorists.
    There has been extensive debate, before
    the district court and this court, as to
    the relative merits of these statistics.
    Defendants contend that the population
    benchmarks used to determine the Hispanic
    and African-American populations in
    Illinois are inaccurate, that the ISP
    databases used to determine what
    percentages of these groups are stopped
    by ISP officers do not constitute a
    random sample of ISP stops, and that the
    plaintiffs’ experts did not take into
    account appropriate confounding
    variables. The defendants also challenge
    the qualifications of plaintiffs’ two
    experts. We will assume for the sake of
    argument that these experts are qualified
    because the district court did not
    address the issue.
    The magistrate judge, in his report and
    recommendation, found that plaintiffs’
    evidence "simply fails to prove what
    plaintiffs contend it does." Chavez v.
    Ill. State Police, No. 94 CV 5307, slip
    op. at 19 (N.D. Ill. July 10, 1997). He
    specifically cited the deficiency of the
    field reports, finding they were
    "meaningless" because they were not
    compiled for every stop and, therefore,
    did not comprise a random or regular
    sample of motorists stopped by the ISP.
    Id. The district judge did not examine
    the merits of the statistics because she
    determined that, regardless of their
    merit, they could not salvage the
    plaintiffs’ claims as a matter of law.
    See Chavez, 
    27 F. Supp. 2d
     at 1065. Two
    years later, defendants moved to strike
    plaintiffs’ experts’ reports under the
    standard set forth in Daubert v. Merrell
    Dow Pharmaceuticals, 
    509 U.S. 579
    , 592-
    96, 
    113 S. Ct. 2786
    , 
    125 L. Ed. 2d
    . 469
    (1993). The district court noted that it
    was "unclear why the defendants are
    raising the Daubert issue for the first
    time now," Chavez v. Ill. State Police,
    No. 94 CV 5307 (N.D. Ill. July 8, 1999),
    and denied the motion without prejudice.
    Chavez v. Ill. State Police, No. 94 CV
    5307, 
    1999 WL 592187
    , at *22 (N.D. Ill.
    Aug. 2, 1999). On appeal, plaintiffs
    request that we remand to the district
    court for a thorough review of the
    statistics, if we determine that
    statistics could be used to show
    discriminatory effect.
    Remand is not necessary. First, the
    magistrate judge did consider the
    statistics. "Determining the validity and
    value of statistical evidence is firmly
    within the discretion of the district
    court, and we will reverse its findings
    only if they are clearly erroneous." EEOC
    v. O & G Spring and Wire Forms Specialty
    Co., 
    38 F.3d 872
    , 876 (7th Cir. 1994)
    (citing Pullman-Standard v. Swint, 
    456 U.S. 273
    , 287-90, 
    102 S. Ct. 1781
    , 72 L.
    Ed. 2d 66 (1982)). Second, though our
    reasons differ slightly from those of the
    magistrate judge, it is clear that these
    statistics can not satisfy the
    discriminatory effect element of the
    plaintiffs’ prima facie case--they are
    simply insufficient as a matter of law.
    As we have noted, expert analysis must be
    both relevant and reliable, and the
    statistics here are neither. See Adams v.
    Ameritech Servs., Inc., 
    231 F.3d 414
    , 423
    (7th Cir. 2000) (citing Kumho Tire Co. v.
    Carmichael, 
    526 U.S. 137
    , 152, 
    119 S. Ct. 1167
    , 
    143 L. Ed. 2d 238
     (1999)).
    We have already discussed the two
    pertinent ISP databases that contain
    records resulting from ISP stops: the
    "citations and warnings" database and the
    "field reports" database. The citation
    and warnings database records every
    citation or warning that is issued,
    including the name of the individual
    receiving the citation or warning and the
    basis for the action. The field reports,
    in contrast, are only completed in
    certain limited circumstances such as
    when contraband is found, when a
    custodial arrest is made, when canines
    are involved, or when there is damage to
    police equipment or injury to a trooper;
    though even then, they are not always
    completed. Of the 1.8 million incidents
    in which citations or warnings were
    issued in the eleven police districts
    with Valkyrie teams,/10 only 88,618
    resulted in field reports./11 Thus, for
    the relevant time period, less than five
    percent of incidents which gave rise to a
    citation or warning resulted in a field
    report. Plaintiffs focused primarily on a
    subset of the field reports--the
    "Valkyrie field reports." These reports
    are generated when an ISP officer uses
    Valkyrie skills or obtains information of
    interest to the Valkyrie program. The
    officer is encouraged to fill out a field
    report and to mark it with a "V."
    The ISP does not keep a comprehensive
    record of all motorists stopped; there is
    no database that tracks every stop, the
    race of the parties involved, and whether
    a search took place. This is ultimately
    the type of information that would be
    useful in a suit such as this, as it
    would clearly indicate what percentages
    of African-American and Hispanic
    motorists were being stopped and searched
    on Illinois highways. Of course, under
    Armstrong, plaintiffs have to do more
    than simply proffer percentages of stops,
    but we can defer this issue for the
    moment.
    The Valkyrie field reports are the
    source for the bulk of the plaintiffs’
    statistics, and were the basis of the
    equal protection claims they presented to
    the district court. Plaintiffs assert
    that the number of Valkyrie field reports
    issued to Hispanic and African-American
    motorists is more than two standard
    deviations over the expected norm, based
    upon the representation of each of these
    groups in the population. Such a finding,
    if based upon appropriate statistical
    analysis, would be statistically
    significant. See Adams v. Ameritech
    Services, Inc., 
    231 F.3d 414
    , 424 (7th
    Cir. 2000) ("Two standard deviations is
    normally enough to show that it is
    extremely unlikely . . . that the
    disparity is due to chance . . . .");
    Mister v. Ill. Cent. Gulf R. Co., 
    832 F.2d 1427
    , 1431 (7th Cir. 1987) (noting
    the "’rule’ that findings should be
    accepted as ’statistically significant’
    when the observations are more than two
    standard deviations away from the values"
    that would result if there was no
    discrimination).
    We are reluctant, however, to derive any
    conclusions about the racial breakdown of
    those motorists stopped, detained, and
    searched by Valkyrie officers based upon
    the Valkyrie field reports. First of all,
    plaintiffs have not told us how many
    Valkyrie field reports there are, or how
    many were analyzed. One record document
    indicates that there were 306 field
    reports completed by Valkyrie officers in
    1992; plaintiffs then conducted a "random
    sample" of this data. There is no
    indication of the total number of stops
    this is being compared to, thus it is
    impossible to tell if this sample size is
    sufficiently large to be reliable. See
    Soria v. Ozinga Bros., Inc., 
    704 F.2d 990
    , 995 (7th Cir. 1992) (noting that
    "[c]ourts in Title VII actions have
    almost uniformly rejected statistical
    conclusions based upon such small
    samples"). Further, the field reports
    (and particularly the Valkyrie field
    reports) are completed on a selective
    basis after limited types of enforcement
    activity. This type of non-random sample
    might undermine the reliability of the
    statistics. See, e.g., United States v.
    Johnson, 
    185 F.3d 765
    , 769 (7th Cir.
    1999) (explaining difficulties with non-
    random sampling); Bush v. Commonwealth
    Edison Co., 
    990 F.2d 928
    , 932 (7th Cir.
    1993) (noting that the failure to examine
    a random sample of work records prevented
    the proffered statistics from
    demonstrating a pattern of racial
    discrimination).
    While the citations and warnings
    database--which includes all citations
    and warnings issued by ISP officers--
    could potentially provide a more accurate
    estimation of the numbers of motorists
    stopped, detained, and searched, this
    database does not record the race of the
    motorist. The numbers of Hispanics
    represented can be estimated through an
    analysis of Hispanic surnames, but there
    is no mechanism for calculating the
    numbers of whites or African-Americans
    issued citations or warnings. Without
    comparative racial information,
    plaintiffs can not prove that they were
    stopped, detained, or searched, when sim
    ilarly situated whites were not.
    The limitations of the field reports and
    citations and warnings databases only
    scratch the surface of potential problems
    with the proffered statistics. The crux
    of the matter lies in the population
    benchmarks. As already noted, the
    plaintiffs compared the numbers derived
    from the Valkyrie field reports with the
    representation of whites, African-
    Americans, and Hispanics ostensibly in
    the Illinois population and on Illinois
    roads. We find that these population
    benchmarks can not provide an adequate
    backdrop for assessing the racial
    composition of drivers faced by Valkyrie
    officers, and thus can not
    indicatewhether Valkyrie officers
    disproportionately stop, detain, and
    search Hispanics and African-Americans.
    The first benchmark used by the
    plaintiffs was the 1990 Census. It is
    widely acknowledged that the Census fails
    to count everyone, and that the
    undercount is greatest in certain
    subgroups of the population, particularly
    Hispanics and African-Americans. See
    Dep’t of Commerce v. U.S. House of
    Representatives, 
    525 U.S. 316
    , 322-23,
    
    119 S. Ct. 765
    , 
    142 L. Ed. 2d 797
     (1999);
    Tucker v. Dep’t of Commerce, 
    958 F.2d 1411
    , 1412-13 (7th Cir. 1992); David H.
    Kaye & David A. Friedman, Reference Guide
    on Statistics, in Reference Manual on
    Scientific Evidence 83, 98 (Federal Judicial
    Center ed., 2d ed. 2000). We further note
    that the preliminary data from the 2000
    Census indicates that the number of
    Hispanics and Latinos living in the
    United States has increased by 57.9% over
    the past ten years. See U.S. Census 2000
    Population and Housing Tables, PHC-T-1,
    tbl. 4, at
    http://www.census.gov/population/www/
    cen2000/tablist.html (last visited April
    18, 2001). The data also indicates that
    in 2000, 12.3% of the Illinois population
    was Hispanic or Latino, as compared to
    7.9% in 1990. See id. at PHC-T-6, tbl. 5.
    This recent data is simply another
    indication that the 1990 Census may not
    have accurately represented the Hispanic
    and African-American populations in
    Illinois for the relevant period.
    Despite its flaws, the Census data may
    be the best population data available. It
    is utilized by the state of Illinois to
    conduct redistricting, see Ill. Const. art.
    IV, sec. 3(b), and is occasionally
    referenced by this court in order to
    determine the representation of varying
    ethnic and racial groups in the
    population. See, e.g., Bradley v. Work,
    
    154 F.3d 704
    , 706 (7th Cir. 1998); United
    States v. Barry, 
    71 F.3d 1269
    , 1272 n.2
    (7th Cir. 1995). Even if it were entirely
    accurate, however, Census data can tell
    us very little about the numbers of
    Hispanics and African-Americans driving
    on Illinois interstate highways, which is
    crucial to determining the population of
    motorists encountered by the Valkyrie
    officers. Other surveyors have noted as
    much, and have "sought to measure the
    racial composition of the traveling
    public on the road." David A. Harris, The
    Stories, The Statistics, and The Law: Why
    "Driving While Black" Matters, 
    84 Minn. L
    . Rev.
    265, 278 (1999) (discussing the study by
    Dr. John Lamberth of Temple University in
    which he constructed teams to "count[ ]
    the cars on the road and tabulate[ ]
    whether the driver or another occupant
    appeared black").
    Perhaps to address this problem, the
    plaintiffs also relied upon the 1990
    Nationwide Personal Transportation Survey
    (NPTS). This is a nationwide telephone
    survey conducted every five years by the
    Federal Highway Administration of the
    U.S. Department of Transportation, aimed
    at providing a "picture of passenger
    travel in the United States." Nationwide
    Personal Transportation Survey, at
    http://www.bts.gov/ntda/npts (last
    visited April 18, 2001). Plaintiffs
    utilized the NPTS to ascertain the
    percentage of personal vehicle trips
    taken by African-American and Hispanic
    drivers, as well as the number of
    personal vehicle miles driven by these
    groups. The data, however, was not
    intended to be used in this manner. The
    survey itself noted that "the samples
    were designed to produce regional and
    national-level estimates. Thus, estimates
    for individual local areas . . . or
    States may not be based on large enough
    sample sizes and may be imprecise."
    User’s Guide for the Public Use Tapes:
    1990 Nationwide Personal Transportation
    Survey, II-4. The small sample sizes were
    noted within the survey material: only
    868 households in Illinois participated,
    encompassing 1120 whites, 118 blacks, and
    51 Hispanics. Due to the small numbers of
    African-Americans and Hispanics surveyed,
    the NPTS data would suggest that there
    are even fewer African-Americans and
    Hispanics in Illinois than is indicated
    by the Census. Clearly, the NPTS was not
    intended to provide and can not
    accurately provide racial breakdowns for
    the population of motorists on Illinois
    roads. Further, while the survey is
    "particularly well suited for measuring
    repetitive, local travel," Nationwide
    Personal Transportation Survey, at
    http://www.bts.gov/ntda/npts (last
    visited April 18, 2001), it is less
    relevant to determining who is traveling
    on the interstate highways. Neither can
    it indicate the number of non-Illinois
    residents traveling on the interstate
    highways.
    The defendants’ expert claimed that the
    "insurmountable problem with the
    statewide tests is with the overall popu
    lation benchmark." Donahue Report at 14.
    We agree. These population baselines are
    simply insufficient to determine the
    racial makeup of motorists on Illinois
    highways. Thus, without reliable data on
    whom Valkyrie officers stop, detain, and
    search, and without reliable data
    indicating the population on the highways
    where motorists are stopped, detained,
    and searched, we can not find that the
    statistics prove that the Valkyrie
    officers’ actions had a discriminatory
    effect on the plaintiffs.
    2.   Discriminatory Intent
    We have found that Chavez has proven
    that defendants’ actions had a
    discriminatory effect on him but that
    Lee, who relied solely on the plaintiffs’
    statistics, has not. Even if we had
    determined that Lee proved effect,
    however, both plaintiffs must still prove
    discriminatory intent in order to
    establish a violation of the Equal
    Protection Clause. See Washington v.
    Davis, 
    426 U.S. 229
    , 242, 
    96 S. Ct. 2040
    ,
    
    48 L. Ed. 2d 597
     (1976); Greer v.
    Amesqua, 
    212 F.3d 358
    , 370 (7th Cir.
    2000), cert denied, 
    121 S. Ct. 568
    , 
    148 L. Ed. 2d 487
     (2000); Johnson v. City of
    Fort Wayne, Ind., 
    91 F.3d 922
    , 945 (7th
    Cir. 1996). Plaintiffs must show that the
    "decisionmakers in [their] case acted
    with discriminatory purpose." McClesky v.
    Kemp, 
    481 U.S. 279
    , 292, 
    107 S. Ct. 1756
    ,
    
    95 L. Ed. 2d 262
     (1987); Nabozny v.
    Podlesny, 
    92 F.3d 446
    , 453 (7th Cir.
    1996). "’’Discriminatory purpose’ . . .
    implies more than . . . intent as
    awareness of consequences. It implies
    that the decisionmaker . . . selected or
    reaffirmed a particular course of action
    at least in part ’because of’ . . . its
    adverse effects upon an identifiable
    group.’" McClesky, 481 U.S. at 298
    (quoting Pers. Adm’r of Mass. v. Feeney,
    
    442 U.S. 256
    , 279, 
    99 S. Ct. 2282
    , 60 L.
    Ed. 2d 870 (1979)); Hearne v. Bd. of
    Educ. of City of Chi., 
    185 F.3d 770
    , 776
    (7th Cir. 1999) (same).
    Plaintiffs offer little evidence
    specific to their case that would support
    an inference that racial considerations
    played a part in their stops, detentions,
    and searches. Instead they argue that
    their statistics compel an inference of
    purposeful discrimination. We will
    consider the non-statistical evidence
    first, construed in the light most favor
    able to the plaintiffs.
    Plaintiffs present evidence relating
    both to the named plaintiffs’ stops and
    to the ISP in general. During the stop
    and search of Gregory Lee, it is asserted
    that Trooper Fraher justified the stop by
    saying that one can never tell with "you
    people." Trooper Cessna, a participant in
    the search involving Peso Chavez, said in
    his deposition that he was trained that a
    motorist’s race is one "indicator" that
    "you’ve got to keep in mind." The
    remainder of the evidence relates to the
    operations and practices of the ISP: 1)
    The ISP will not "open a case" when a
    citizen who received a citation complains
    that he did not commit any offense, but
    was instead stopped on the basis of race;
    2) The ISP’s Office of Inspection and
    Audits does not investigate the issue of
    race as it affects trooper enforcement
    activity; 3) Selected ISP drug
    interdiction training materials emphasize
    the alleged predominance of Hispanics
    among those highway travelers carrying
    illegal drugs; 4) Through affidavit
    testimony one trooper said that ISP
    officers are not prohibited from
    considering race as a factor, and another
    stated that race can be a permissible
    factor to consider in deciding what
    motorists to stop (for example, in the
    context of an all-points bulletin or in
    deciding to conduct a Terry stop); and 5)
    From 1990 to 1994 Snyders reviewed
    monthly statistics showing that African-
    American and Hispanic motorists comprised
    more than sixty percent of motorists
    searched by Valkyrie officers in District
    Six.
    In order to carry their burden, Chavez
    and Lee must prove that they were
    stopped, detained, and searched because
    the defendant officers involved in their
    stops were motivated by a discriminatory
    intent. Chavez points to one piece of
    indirect evidence that his stop was
    racially motivated: Trooper Cessna, one
    of the officers who searched Chavez,
    testified that sometimes race is an
    indicator to keep in mind. Other evidence
    weighs against drawing a conclusion of
    discriminatory intent. As part of his
    investigation in the Koutsakis case,
    Chavez submitted a written memo to Nancy
    Hollander detailing the February 18, 1993
    stop and search; he stated that none of
    the troopers said anything which
    "appeared to be racially motivated."
    Further, Trooper Thomas listed Chavez’s
    race as "white" on the field report
    regarding Chavez’s stop and search, even
    though there was a listing for
    "Hispanic." There is nothing in the
    record to indicate that Thomas thought
    Chavez was Hispanic and simply decided to
    list his race as white in an attempt to
    disguise his motivations.
    Lee offers specific evidence of racial
    animus during his stop: the statements
    made by Trooper Fraher that one can never
    tell with "you people." While we
    certainly do not approve of racially
    insensitive remarks, such comments do not
    by themselves violate the Constitution.
    See Sherwin Manor Nursing Ctr. v.
    McAuliffe, 
    37 F.3d 1216
    , 1221 (7th Cir.
    1995); Bell v. City of Milwaukee, 
    746 F.2d 1205
    , 1259 (7th Cir. 1984). "This
    does not mean, however, that the use of
    racially derogatory language is without
    legal significance. Such language is
    strong evidence of racial animus, an
    essential element of any equal protection
    claim." DeWalt v. Carter, 
    224 F.3d 607
    ,
    612 n.3 (7th Cir. 2000); Bell, 746 F.2d
    at 1259. Lee has not proffered any
    evidence of racial animus on the part of
    the other officers who allegedly stopped
    and searched him. The other officers who
    stated that race might be a factor to
    consider had nothing to do with the stops
    of Lee or Chavez.
    The allegations relating to the
    practices and procedures of the ISP do
    not demonstrate discriminatory intent in
    the stopping of the named plaintiffs
    because plaintiffs have not shown that
    the ISP required or encouraged Valkyrie
    officers to racially profile. There is
    actually evidence to the contrary. The
    first page of the Operation Valkyrie
    Officer’s Guide to Drug Interdiction
    Techniques states:
    The success of the Valkyrie program is
    directly linked to its eschewment from
    the use of any form of violator profiles.
    The Illinois State Police has never
    endorsed, condoned or promoted the use of
    any profiling system in its interdiction
    program. Criminal elements exist in
    virtually every racial, national, tribal,
    religious, linguistic and cultural group.
    An officer whose enforcement stops are
    based on ethnicity is guilty of civil
    rights violations and is subject to
    prosecution in the federal courts.
    Criminality transcends any perceived
    racial, ethnic or socio-economic
    parameters; to focus on a single segment
    of society is to limit your enforcement
    opportunities.
    Operation Valkyrie: An Officer’s Guide to
    Drug Interdiction Techniques at i. Even a
    stringent review of the tapes of Officer
    Snyders’ training sessions shows that,
    during the sessions, Snyders discourages
    the use of race as an indicator as
    "counterproductive." One of plaintiffs’
    experts-- James Fyfe, professor in the
    Criminal Justice Department at Temple
    University--stated that, based on the
    material he had reviewed, the ISP was
    doing a "terrific job of apprehending
    drug offenders in a way that acknowledges
    people’s constitutional rights."
    Plaintiffs’ Amended Response to
    Defendants’ Ninth Request for Admission
    of Facts para. 8.
    Just because the official policy is to
    decry racial profiling, however, does not
    automatically mean that defendants are
    free from reproach:
    We are satisfied that the State Police
    does not embrace an official policy to
    engage in racial profiling or any other
    form of intentional disparate treatment
    of minority motorists. To the contrary,
    the officially-stated policy has always
    been to condemn reliance upon
    constitutionally-impermissible factors.
    The message in these official policies,
    however, was not always clear and may
    have been undermined by other messages in
    both official and unofficial policies.
    What really matters, ultimately, is how
    official policies are interpreted and
    translated into actual practices in the
    barracks across the state and out on the
    road.
    State v. Ballard, 
    752 A.2d 735
    , 744 (N.J.
    Super. Ct. App. Div. 2000). In this case,
    though, we do not think that the one ISP
    document referencing the high number of
    Hispanics involved in the drug trade
    visibly undermined the message that
    racial profiling was illegal and to be
    avoided.
    Plaintiffs’ non-statistical evidence
    does not prove that the defendants
    intended to discriminate against Chavez
    when they stopped and searched him. Nor
    is there sufficient evidence to conclude
    that the three different troopers who
    stopped Lee did so with intent to
    discriminate. We thus turn to plaintiffs’
    statistical evidence.
    Only in "rare cases [has] a statistical
    pattern of discriminatory impact
    demonstrated a constitutional violation,"
    McClesky v. Kemp, 
    481 U.S. 279
    , 293 n.12,
    
    107 S. Ct. 1756
    , 
    95 L. Ed. 2d 262
     (1987)
    (citing Gomillion v. Lightfoot, 
    364 U.S. 339
    , 
    81 S. Ct. 125
    , 
    5 L. Ed. 2d 110
    (1960); Yick Wo v. Hopkins, 
    118 U.S. 356
    ,
    
    6 S. Ct. 1064
    , 
    30 L. Ed. 220
     (1886)),
    though "the Court has accepted statistics
    as proof of intent to discriminate in
    certain limited contexts." Id. at 293.
    Specifically, "[t]he Court has accepted
    statistical disparities as proof of an
    equal protection violation in the
    selection of a jury venire in a
    particular district" and "has accepted
    statistics in the form of multiple-
    regressions analysis to prove statutory
    violations under Title VII of the Civil
    Rights Act of 1964." Id. at 293-94; see,
    e.g., Int’l Bhd. of Teamsters, 
    431 U.S. 324
    , 
    97 S. Ct. 1843
    , 
    52 L. Ed. 2d 396
    (1977); EEOC v. O & G spring & Wire Forms
    Specialty Co., 
    38 F.3d 872
    , 876 (7th Cir.
    1994). It is possible that the Supreme
    Court would also accept statistics as
    sole proof of intent in the context of
    challenges to legislative redistricting.
    See Hunt v. Cromartie, 
    526 U.S. 541
    , 548-
    49, 
    119 S. Ct. 1545
    , 
    143 L. Ed. 2d 731
    (1999) (finding that circumstantial
    evidence, including statistical evidence,
    "tend[ed] to support an inference that
    the state drew its distinct lines with an
    impermissible racial motive--even though
    [plaintiffs] presented no direct evidence
    of intent"); Smith v. Boyle, 
    144 F.3d 1060
    , 1067-68 (7th Cir. 1998) (Flaum, J.
    concurring in part and dissenting in
    part) (noting that Supreme Court cases
    addressing legislative redistricting
    indicate that discriminatory effect might
    suffice to establish intent); see also
    Gomillion v. Lightfoot, 
    364 U.S. 339
    , 
    81 S. Ct. 125
    , 
    5 L. Ed. 2d 110
     (1960)
    (finding that the Alabama legislature
    violated the Fifteenth Amendment by
    altering the city boundaries in a way
    that excluded 395 of 400 black voters
    without excluding a single white voter).
    None of these situations, however, are
    before us. Instead, plaintiffs ask us to
    rely on their statistics, which allegedly
    show discriminatory effect, to conclude
    that the ISP and the individual officer-
    defendants are intentionally
    discriminating against the plaintiffs. In
    this context, statistics may not be the
    sole proof of a constitutional violation
    and neither Chavez nor Lee have presented
    sufficient non-statistical evidence to
    demonstrate discriminatory intent.
    The plaintiffs have thus not met their
    burden of showing that the ISP or its
    individual officers purposefully
    discriminated against them. Because
    plaintiffs have not proven the prima
    facie elements of an equal protection
    claim under the Fourteenth Amendment, we
    will affirm the district court’s grant of
    summary judgment in favor of the
    defendants.
    E.   Right to Travel Claims
    The plaintiffs’ first amended complaint
    alleged that the defendants’ actions
    unreasonably burdened the fundamental
    right to travel guaranteed by Article VI,
    Section 2 of the U.S. Constitution and by
    the Privileges and Immunities Clause of
    the Fourteenth Amendment. The plaintiffs
    claimed that defendants’ conduct
    prevented them from "freely traveling the
    highways in the State of Illinois." The
    district court determined that, while
    plaintiffs’ complaint alleged violations
    of the right to travel, the factual
    allegations of the complaint failed to
    allege any violations of the right to
    interstate travel--that is, the right to
    travel among the states. See Chavez v.
    Ill. State Police, No. 94 CV 5307, 
    1996 WL 65992
     (N.D. Ill. Feb. 12, 1996). Thus,
    the court concluded that only intrastate
    travel--travel within the state of
    Illinois--was raised by the allegations
    of the complaint. See id.
    The district court then determined that
    "[n]either the Supreme Court nor the
    Seventh Circuit have addressed whether
    intrastate travel is afforded the same
    protection under constitutional
    principles as interstate travel" and
    declined to conclude that it is. Id. The
    court dismissed the plaintiffs’ claims
    pursuant to Rule 12(b)(6) of the Federal
    Rules of Civil Procedure. Plaintiffs
    appeal this ruling, arguing that Chavez’s
    right to travel claim should not have
    been dismissed.
    We review the district court’s dismissal
    under Rule 12(b)(6) de novo, examining a
    plaintiff’s factual allegations and any
    inferences reasonably drawn therefrom in
    the light most favorable to the
    plaintiff. See Marshall-Mosby v. Corp.
    Receivables, Inc., 
    205 F.3d 323
    , 326 (7th
    Cir. 2000). Dismissal under Rule 12(b)(6)
    is proper only if the plaintiff could
    prove no set of facts in support of his
    claims that would entitle him to relief.
    Conley v. Gibson, 
    355 U.S. 41
    , 45-46, 
    78 S. Ct. 99
    , 
    2 L. Ed. 2d 80
     (1957); Veazey
    v. Communications & Cable of Chi., Inc.,
    
    194 F.3d 850
    , 854 (7th Cir. 1999). "[I]f
    it is possible to hypothesize a set of
    facts, consistent with the complaint,
    that would entitle the plaintiff to
    relief, dismissal under Rule 12(b)(6) is
    inappropriate." Veazey, 194 F.3d at 854
    (citing Graehling v. Vill. of Lombard,
    Ill., 58 F.3d. 295, 297 (7th Cir. 1995)).
    The right to travel "embraces at least
    three different components:" 1) the right
    of a citizen of one state to enter and
    leave another state; 2) the right to be
    treated as a welcome visitor rather than
    an unfriendly alien when temporarily
    present in the second state; and 3) for
    those travelers who elect to become
    permanent residents, the right to be
    treated like other citizens of that
    state. See Saenz v. Roe, 
    526 U.S. 489
    ,
    500, 
    119 S. Ct. 1518
    , 
    143 L. Ed. 2d 689
    (1999).
    We do not agree with the district court
    that Chavez’s claim only alleged a
    violation of his right to intrastate
    travel. Chavez alleges, in effect, that
    the ISP’s practices are a barrier to his
    ability to enter and leave the state of
    Illinois. This is a legal claim based on
    the first component of the right to
    interstate travel, and the district court
    should have examined whether the
    complaint properly stated a claim under
    this component. We will thus consider
    whether Chavez could prove any set of
    facts that would prevent dismissal of his
    interstate travel claims under Rule
    12(b)(6).
    The first component of the right to
    travel prohibits direct impairment of the
    right to move between the states, that
    is, the right to go from one place to
    another, including the right to cross
    state borders while en route./12 The
    scope of this component is not well
    defined because it has received only
    limited treatment from the Supreme Court.
    Past cases "spoke in terms of ’actual
    barriers’ to interstate movement," though
    the component may encompass a broader
    range of prohibitions. Md. State
    Conference of NAACP Branches v. Md. Dept.
    of State Police, 
    72 F. Supp. 2d 560
    , 568
    (citing Bray v. Alexandria Women’s Health
    Clinic, 
    506 U.S. 263
    , 277, 
    113 S. Ct. 753
    , 
    122 L. Ed. 2d 34
     (1993); Zobel v.
    Williams, 
    457 U.S. 55
    , 60 n.6, 
    102 S. Ct. 2309
    , 
    72 L. Ed. 2d 672
     (1982)). Even
    giving this prohibition a broad scope,
    however, plaintiffs’ factual allegations,
    if proved, would not demonstrate any
    direct impairment. Defendants have done
    nothing to prevent Chavez from entering
    or leaving the state. Further, Chavez has
    asserted that he will travel to Illinois
    in the future, not that the defendants
    are preventing him from doing so.
    Chavez’s claim that he was stopped in
    Illinois on the basis of his race, simply
    does not state a right to travel claim,
    based upon the first component of that
    right, under which relief could be
    granted. See Saenz, 526 U.S. at 501
    (noting that the California statute at
    issue, limiting the maximum welfare
    benefits available to newly arrived
    residents, did not impose an obstacle to
    plaintiffs’ entry into the state).
    We thus turn to the second component of
    the right to travel, expressly protected
    by Article IV, Section 2, Clause 1 of the
    Constitution: "The Citizens of each State
    shall be entitled to all Privileges and
    Immunities of Citizens in the several
    States." The purpose of this provision is
    to protect non-residents from
    discrimination "where there is no
    substantial reason for the discrimination
    beyond the mere fact that they are
    citizens of other states." Saenz, 526
    U.S. at 502 (citing Toomer v. Witsell,
    
    334 U.S. 385
    , 396, 
    68 S. Ct. 1156
    , 92 L.
    Ed. 1460 (1948)). Plaintiffs allege that
    the ISP’s practice of stopping,
    detaining, and searching African-American
    and Hispanic motorists unreasonably
    burdens their right "to be treated as
    welcome visitors" in Illinois.
    Plaintiffs’ complaint does not allege
    that the ISP discriminates against non-
    residents, however, but that the ISP
    targets all African-American and Hispanic
    motorists, regardless of their state of
    origin. This allegation does not state a
    claim under the Privileges and Immunities
    Clause of Article VI.
    Plaintiffs also allege, on appeal, that
    the defendants target African-Americans
    and Hispanic motorists from states in the
    American southwest. Defendants have
    repeatedly asserted that Valkyrie
    officers are not trained to stop people
    based on any type of indicator, race or
    otherwise, yet the defendants contradict
    this statement at least twice: 1) the
    defendants’ statistical expert stated
    that ISP officers would be more inclined
    to stop a vehicle with a license plate
    from a drug source state than a vehicle
    with a license place from a non-drug
    source state; and 2) the defendants’
    appellate brief stated that "Valkyrie
    troopers focus on whether a particular
    vehicle or driver is both violating the
    traffic laws and also displaying any
    combination of DEA-approved
    characteristics associated with drug
    couriers, such as license plates from a
    drug source state."
    While the allegation that defendants
    stop motorists driving cars from drug
    source states was not before the district
    court, the well-established law of this
    circuit provides that, when reviewing a
    dismissal under Rule 12(b)(6), "’we will
    consider new factual allegations raised
    for the first time on appeal provided
    they are consistent with the complaint.’"
    Veazey, 194 F.3d at 861 (quoting
    Highsmith v. Chrysler Credit Corp., 
    18 F. 3d
     434, 439 (7th Cir. 1994)). The
    allegation, however, is rife with
    problems.
    First, the allegation that Chavez was
    stopped because he had an out of state
    license plate is not consistent with the
    complaint. The complaint is hinged upon
    the allegation that Chavez was stopped
    because of his race. He has never alleged
    that he was stopped because of his out of
    state license plate. Second, plaintiffs
    asked this court to ignore the
    possibility that Valkyrie officers stop
    vehicles with out of state plates for the
    purposes of the equal protection
    analysis, dismissing the idea as a late-
    day attempt by the ISP to justify the
    high numbers of Hispanics stopped. The
    final blow, however, is plaintiffs’ own
    admission that the ISP does not engage in
    pre-stop profiling based on license
    plates:
    The deposition testimony both of front-
    line Valkyrie troopers and of the head of
    the Valkyrie program shows that Valkyrie
    troopers do not profile prior to stopping
    a car; rather, Valkyrie encounters emerge
    from routine traffic stops. In fact,
    significant evidence demonstrates that
    the Valkyrie program does not train
    officers which motorists to stop for
    violations of the traffic code; rather,
    Valkyrie officers are trained to identify
    indicators of drug trafficking only after
    a vehicle has already been stopped.
    Plaintiffs’ Preliminary Response to
    Defendants’ Daubert Motion to Strike
    Plaintiffs’ Expert Reports, at 17-18.
    Plaintiffs can not base their right to
    travel claim upon something that they
    have admitted does not occur.
    In light of the above analysis, we will
    affirm the Rule 12(b)(6) dismissal of
    Chavez’s right to travel claim. We do not
    reach the question of whether targeting
    vehicles with out of state license plates
    would be a violation of the right to
    travel.
    F. Supervisory Liability Under 42
    U.S.C. sec. 1983
    Plaintiffs claim that defendant Master
    Sergeant Michael Snyders, the former
    statewide coordinator of the Valkyrie
    program, is liable under 42 U.S.C. sec.
    1983 for his supervision of the officers
    charged in this action./13 The
    defendants moved for summary judgment on
    the supervisory liability claim, and the
    magistrate judge recommended granting the
    motion. The district court agreed and
    granted summary judgment, finding that
    "the plaintiffs have failed to point to
    any evidence linking Snyders’ training to
    Cessna’s use of race, and have failed to
    create a question of material fact as to
    whether Snyders taught state troopers to
    use race as a factor in their work, or
    facilitated or condoned racially
    discriminatory enforcement." Chavez, 
    27 F. Supp. 2d
     at 1076.
    We review de novo a grant of summary
    judgment, as explained above. "Liability
    under sec. 1983 requires proof that the
    defendants were acting under color of
    state law and that the defendants’
    conduct violated the plaintiff’s rights,
    privileges, or immunities secured by the
    Constitution or laws of the United
    States." Lanigan v. Vill. of E. Hazel
    Crest, Ill., 
    110 F.3d 467
    , 471 (7th Cir.
    1997) (citations omitted). No one
    disputes that Snyders acted under color
    of state law, thus we move to the
    question of whether plaintiffs have
    established that he "was personally
    responsible for the deprivation of a
    constitutional right." Gentry v.
    Duckworth, 
    65 F.3d 555
    , 561 (7th Cir.
    1995).
    The doctrine of respondeat superior can
    not be used to hold a supervisor liable
    for conduct of a subordinate that
    violates a plaintiff’s constitutional
    rights. See id. "Supervisory liability
    will be found, however, if the
    supervisor, with knowledge of the
    subordinate’s conduct, approves of the
    conduct and the basis for it." Lanigan,
    110 F.3d at 477 (citations omitted). That
    is, "to be liable for the conduct of
    subordinates, a supervisor must be
    personally involved in that conduct." Id.
    (citations omitted). "[S]upervisors who
    are merely negligent in failing to detect
    and prevent subordinates’ misconduct are
    not liable . . . . The supervisors must
    know about the conduct and facilitate it,
    approve it, condone it, or turn a blind
    eye for fear of what they might see. They
    must in other words act either knowingly
    or with deliberate, reckless
    indifference." Jones v. City of Chi., 
    856 F.2d 985
    , 992-93 (7th Cir. 1988)
    (citations omitted).
    1.   Supervision of Valkyrie Troopers
    Plaintiffs allege that as head of the
    District Six Valkyrie team, and then as
    the Statewide coordinator of Operation
    Valkyrie, Snyders was in a position which
    entailed supervision and extensive
    monitoring of Valkyrie troopers. Yet
    Snyders was not in a supervisory position
    with respect to any of the troopers named
    in this case. He was not part of the
    police chain of command, rather, he
    conducted training sessions that the
    officers attended. Plaintiffs have
    proffered no support for the proposition
    that an individual who trains officers
    can be deemed to be their supervisor. "It
    is not the obligation of this court to
    research and construct the legal
    arguments open to parties, especially
    when they are represented by counsel."
    Sanchez v. Miller, 
    792 F.2d 694
    , 703 (7th
    Cir. 1986); see also Fed. R. App. P.
    28(a)(9). We thus find that Snyders can
    not be held liable based on any alleged
    supervision of the Valkyrie troopers.
    2.   Failure to Intervene
    From 1990 to 1994, Snyders reviewed
    monthly statistics showing that African-
    American and Hispanic motorists comprised
    more than sixty percent of motorists
    searched by Valkyrie officers in his
    district, yet Snyders did not keep
    statewide statistics after being promoted
    to statewide Valkyrie coordinator.
    Plaintiffs assert that this creates an
    issue of fact as to whether Snyders
    failed to intervene to prevent
    constitutional violations. Omissions can
    violate civil rights, and "under certain
    circumstances a state actor’s failure to
    intervene renders him or her culpable
    under sec. 1983." Yang v. Hardin, 
    37 F.3d 282
    , 285 (7th Cir. 1994); see also
    Gossmeyer v. McDonald, 
    128 F.3d 481
    , 494
    (7th Cir. 1997) (applying the Yang
    analysis to a search and seizure claim).
    Yang summarized the responsibility to in
    tervene:
    An officer who is present and fails to
    intervene to prevent other law
    enforcement officers from infringing the
    constitutional rights of citizens is
    liable under sec. 1983 if that officer
    had reason to know: (1) that excessive
    force was being used, (2) that a citizen
    has been unjustifiably arrested, or (3)
    that any constitutional violation has
    been committed by a law enforcement
    official; and the officer had a realistic
    opportunity to intervene to prevent the
    harm from occurring.
    37 F.3d at 285 (citations omitted).
    Presumably, plaintiffs believe that
    Snyders is liable under the third
    category of Yang. We have already found
    that the plaintiffs did not prove a
    violation of their right to equal
    protection. Snyders can not be held
    liable for failing to intervene to
    prevent a constitutional violation that
    plaintiffs have not proven. Further, even
    if there had been a constitutional
    violation, Snyders would not have been
    present and thus would have been unable
    to intervene, rendering him not liable.
    We thus decline to find Snyders liable
    based on his alleged failure to
    intervene.
    3. Personal Responsibility for Deprivation
    of a Constitutional Right
    Snyders could still be liable if he was
    personally responsible for the
    deprivation of plaintiffs’ constitutional
    rights. He will be deemed to have
    sufficient personal responsibility if he
    directed the conduct causing the
    constitutional violation, or if it
    occurred with his knowledge or consent.
    See Gentry, 65 F.3d at 561 (citations
    omitted). The magistrate judge found that
    the evidence "fails to demonstrate that
    Snyders instructed, or even encouraged or
    consented to, the use of race as an
    indicator of illegal drug activity."
    Chavez, No. 94 C 5303, at 30 (N.D. Ill.
    July 10, 1997). We agree.
    Plaintiffs’ assertion that Snyders
    instructed officers to use race as an
    indicator is based on two facts in the
    record: 1) Snyders’ training sessions
    included references to drug distribution
    by Hispanics and 2) Trooper Cessna, who
    testified that race was one indicator to
    keep in mind, identified Snyders as one
    of two officers who participated in his
    Valkyrie training.
    With respect to the first, neither the
    tapes of those sessions nor the written
    materials presented at the sessions
    support a conclusion that Snyders
    instructed officers to use race as an
    indicator. At the beginning of the
    session, Snyders explains to the officers
    that the training does not teach them
    whom to stop, but rather teaches
    observational skills to improve their
    awareness during all stops. Snyders also
    states that profiles are ineffective, and
    that "if troopers waited for Mexicans
    driving pick-ups, they’d miss all the
    white guys with dope." He states that
    perhaps in 1989, Colombians were
    employing Mexicans as couriers, but that
    now most couriers are white males
    traveling alone. He relates stopping two
    Mexicans and seizing drugs, and also
    relates stopping a white family of three
    and seizing drugs. He tells the troopers
    that three of his last four seizures of
    drugs were from white motorists, and that
    the fourth seizure was from a Mexican.
    There is one document used in the
    training sessions that indicates that, in
    Texas, there are a high number of
    Hispanics involved in the drug trade.
    Plaintiffs allege that, if all
    inferences from these statements are
    construed in their favor, there would be
    a disputed issue of material fact. We
    disagree. Even viewed in the light most
    favorable to plaintiffs, the examples
    given by Snyders are clearly intended to
    illustrate that the use of race as an
    indicator is counterproductive. Snyders’
    occasional use of the term "Mexican" does
    not lead to the conclusion that he was
    training troopers to stop motorists on
    the basis of their race. The fact that
    one example discussed a Hispanic motorist
    who was stopped for drugs "does not
    create an inference that Snyders was
    teaching Illinois police that Latino
    drivers are more likely to be
    transporting drugs." Chavez, 
    27 F. Supp. 2d
     at 1076. Further, the presentation of
    one document citing the high percentage
    of Hispanics in the drug trade does not
    support a conclusion that Snyders
    "directed" officers to racially profile.
    The second allegation is that Snyders
    taught Trooper Cessna that race was one
    factor to be considered in determining
    whom to stop. Even if we were to accept
    that Cessna was taught to use race as an
    indicator--and he did not testify that he
    was--there is no evidence that Snyders
    did the teaching. Cessna’s original
    Valkyrie training program was led by two
    instructors, and he also received
    subsequent training once a year in two to
    three day sessions. There is no
    indication who conducted these sessions.
    Thus there is nothing to establish that
    Snyders taught Cessna to use race, even
    if Cessna was taught to do so. As the
    district court noted, "[t]he fact that a
    student allegedly discriminates . . .
    does not necessarily mean . . . that the
    student’s former teacher taught the
    student to discriminate." Id. at 1075.
    We will affirm the district court’s
    grant of judgment in favor of defendant
    Snyders with respect to the claim of
    supervisory liability.
    G.   Title VI
    Plaintiffs’ original complaint requested
    injunctive relief under sec. 1983 and the
    Fourteenth Amendment, but the district
    court dismissed this request under Rule
    12(b)(6) of the Federal Rules of Civil
    Procedure. See Chavez v. Ill. State
    Police, 
    27 F. Supp. 2d 1053
    , 1075 (N.D.
    Ill. 1998); Chavez v. Ill. State Police,
    No. 94 CV 5307, 
    1996 WL 65992
     (N.D. Ill.
    Feb 12, 1996). The plaintiffs then moved
    for leave to reinstate their claims for
    prospective relief, claiming that the
    ISP’s actions in maintaining a practice
    of discrimination and in stopping,
    detaining, and searching plaintiffs
    pursuant to this practice constituted a
    violation of the Civil Rights Act of
    1964, 42 U.S.C. sec. 2000d et seq., and
    the administrative regulations of the
    Department of Justice effectuating Title
    VI, 28 C.F.R. sec. 42.101 et seq.
    Plaintiffs sought, inter alia, a
    permanent injunction barring the ISP from
    stopping, detaining, and searching
    individuals on the basis of race with or
    without legally sufficient cause or
    justification. The district court found
    that the plaintiffs did not have standing
    to pursue claims for equitable relief
    because there was no real and immediate
    threat of injury. See Chavez v. Ill.
    State Police, No. 94 CV 5307, 
    1999 WL 592187
     (N.D. Ill. Aug. 2, 1999).
    In response to the district court’s
    ruling, plaintiffs moved to simplify the
    issues remaining for adjudication under
    Rule 16 of the Federal Rules of Civil
    Procedure, and asked the court to dismiss
    the Title VI regulatory claims for lack
    of jurisdiction. Plaintiffs also
    requested leave to amend their complaint,
    pursuant to Rule 15(a), to voluntarily
    dismiss with prejudice the Title VI
    statutory claims. The court granted the
    motion to simplify and thus dismissed the
    regulatory claims with prejudice under
    Rule 16. See Chavez v. Ill. State Police,
    No. 94 CV 5307, 
    1999 WL 754681
     (N.D. Ill.
    Sept. 9, 1999). The court denied the
    motion for leave to amend the complaint,
    and advised plaintiffs that, if they
    elected to dismiss their remaining claims
    with prejudice under Rule 41(a)(2), the
    court would impose reasonable costs.
    Plaintiffs then moved to dismiss the
    Title VI statutory claims voluntarily and
    with prejudice, under Rule 41(a)(2). The
    court granted this motion. See Chavez v.
    Ill. State Police, No. 94 CV 5307 (N.D.
    Ill. Sept. 21, 1999); Chavez v. Ill.
    State Police, No. 94 CV 5307 (N.D. Ill.
    Sept. 16, 1999).
    On appeal, plaintiffs now argue that the
    judge erred in finding that they lacked
    standing to pursue injunctive relief, and
    ask us to reinstate their Title VI
    regulatory claim. Because the Title VI
    claims were dismissed and are no longer
    part of this litigation, we can not
    review the district court’s finding or
    reinstate the plaintiffs’ claim.
    Plaintiffs intimate that these dismissals
    were somehow improper. We find otherwise.
    The court dismissed the plaintiffs’
    regulatory claims, at plaintiffs’
    request, pursuant to Rule 16. Rule 16(c)
    states that the court may consider, and
    "take appropriate action, with respect to
    (1) the formulation and simplification of
    the issues, including the elimination of
    frivolous claims or defenses." Fed. R. Civ.
    P. 16(c)(1); see also G. Heileman Brewing
    Co., Inc. v. Joseph Oat Corp., 
    871 F.2d 648
    , 650 (7th Cir. 1989) (en banc). While
    this rule is directed toward pre-trial
    conferences, it "is not inconsistent with
    the general purpose of Rule 16" to use
    this rule "to determine whether there are
    any issues remaining in the case that
    justify proceeding to a full trial on the
    merits." 6A Charles Alan Wright, et al.,
    Federal Practice & Procedure sec. 1529, at
    301 (2d ed. 1990). The court would have
    had the power to dispose of the claim sua
    sponte and did nothing improper by
    granting plaintiffs’ request for
    dismissal.
    Likewise, the court dismissed the
    plaintiffs’ Title VI statutory claims at
    the plaintiffs’ request, pursuant to Rule
    41(a)(2). Rule 41(a)(2) addresses the
    effect of voluntary dismissals, and
    states that "an action shall not be
    dismissed at the plaintiff’s insistence
    save upon order of the court and upon
    such terms and conditions as the court
    deems proper." Plaintiffs requested a
    voluntary dismissal with prejudice and
    this is what the court granted. "The case
    law is clear . . . that when a district
    court grants voluntary dismissal under
    Federal Rule of Civil Procedure 41(a), a
    plaintiff normally has neither the reason
    nor the right to appeal the dismissal
    because the plaintiff has received the
    relief it requested." Boland v. Engle,
    
    113 F.3d 706
    , 714 (7th Cir. 1997)
    (citations omitted).
    Plaintiffs wanted to dismiss these
    claims to enable immediate appellate
    review, and they openly explained their
    reasoning:
    The principal concern of this lawsuit
    has always been systematic racial
    profiling by the ISP. . . . As a result
    of this Court’s rulings . . . this
    lawsuit cannot result in an injunction .
    . . . Dismissal with prejudice of these
    claims will facilitate the efficient
    resolution of the merits of this
    litigation by permitting plaintiffs to
    obtain a final judgment from which they
    can immediately appeal . . . .
    Plaintiffs’ Motion to Voluntarily Dismiss
    with Prejudice Certain Claims at paras.
    1-2, 5. By moving to dismiss the Title VI
    claims, however, the plaintiffs limited
    themselves to the possibility that they
    could get injunctive relief based on
    their equal protection or sec. 1983
    claims. They ask us to reinstate the
    regulatory claim, but we can not
    reinstate what they voluntarily
    dismissed. While they may wish this was
    not so, it is the legal consequence of
    their very purposeful actions.
    H. Payment of Litigation Costs as a
    Condition of Voluntary Dismissal
    On August 4, 1999, plaintiffs advised
    the district court judge that, in
    response to the court’s numerous unfavor
    able rulings, they intended to dismiss
    their remaining claims with prejudice in
    order to take an immediate appeal. As
    noted above, the court denied the request
    for leave to amend the complaint,
    dismissed the Title VI regulatory claims
    pursuant to Rule 16 of the Federal Rules
    of Civil Procedure, and advised
    plaintiffs that, if they elected to
    dismiss the remaining claims pursuant to
    Rule 41(a)(2), the court would impose
    reasonable costs. Plaintiffs opposed the
    imposition of costs, but the court ruled
    that "an award of reasonable costs will
    be a condition precedent to entry of an
    order permitting the plaintiffs to
    voluntarily dismiss their remaining
    claims." Chavez v. Ill. State Police, No.
    94 CV 5307, 
    1999 WL 754681
    , at *6 (N.D.
    Ill. Sept. 9, 1999). Plaintiffs
    eventually accepted the court’s condition
    on dismissal. Noting the seriousness of
    the decision, the court required proof
    that the named plaintiffs voluntarily
    sought to dismiss their remaining claims,
    and each of the named plaintiffs
    submitted a sworn declaration expressly
    agreeing to the conditions of dismissal.
    The court then granted plaintiffs’ motion
    to voluntarily dismiss the remaining
    claims with prejudice under Rule
    41(a)(2). The plaintiffs subsequently
    filed their notice of appeal with this
    court.
    In October 1999, the defendants moved
    for, inter alia, immediate payment of all
    costs. Plaintiffs responded that they
    would seek a stay of payment pending
    appeal under Rule 62(d). On October 22,
    the district court granted defendants’
    motion for immediate payment, noting that
    the "fundamental problem with the
    plaintiffs’ position regarding costs is
    that the court specifically ordered that
    ’an award of reasonable costs will be a
    condition precedent’" to voluntarily
    dismissal. Chavez v. Ill. State Police,
    No. 94 CV 5307 (N.D. Ill. Oct. 22, 1999)
    (quoting Chavez, 
    1999 WL 754681
    , at *6
    (N.D. Ill. Sept. 9, 1999)). The court
    further stated that if plaintiffs "wish
    to renege on their acceptance of this
    condition, they must establish that they
    misunderstood its nature, as a change of
    heart is not enough to reopen proceedings
    at this point." Id. Plaintiffs did not
    attempt to withdraw their motion to
    dismiss.
    In late November the district court
    taxed costs in the amount of $22,800.72.
    Judge Manning reiterated that payment of
    costs was a condition precedent to her
    dismissal order, and that the costs award
    would need to be paid regardless of the
    result on appeal. Following that
    decision, the plaintiffs moved to alter
    or amend the judgment pursuant to Rule
    59. Plaintiffs also moved for a stay of
    payment pending appeal. On January 13,
    2000, the court denied plaintiffs’ motion
    to alter or amend the judgment, but did
    grant the requested stay of payment.
    Shortly after, plaintiffs filed a notice
    of appeal from the court’s cost orders,
    challenging the decision to tax costs as
    a condition on voluntarily dismissal with
    prejudice.
    As we noted in our discussion of the
    Title VI claims, a court may include, in
    its order for voluntary dismissal,
    whatever "terms and conditions" it deems
    proper. Fed. R. Civ. P. 41(a)(2). The
    district court has broad discretion in
    this respect, and we will overturn an
    imposition of conditions only if the
    court abused its discretion. See Babcock
    v. McDaniel, 
    148 F.3d 797
    , 799 (7th Cir.
    1998); LeBlang Motors, Ltd. v. Subaru of
    America, Inc., 
    148 F.3d 680
    , 686 (7th
    Cir. 1998). Clearly, the court here did
    not abuse its discretion. Judge Manning
    repeatedly stressed the import of the
    plaintiffs’ decision to voluntarily
    dismiss their claims. She decided not to
    assess attorneys’ fees, as the parties
    would have incurred greater legal costs
    had they gone to trial, but did exercise
    her discretion to require the plaintiffs
    to pay costs as a condition of dismissal.
    The plaintiffs abandoned their arguably
    meritorious remaining claims; this type
    of decision should not be taken lightly,
    particularly after five years of
    briefing, discovery, motions, orders, and
    so forth. As noted by Judge Manning, "the
    award of reasonable costs to the
    defendants reflects the court’s decision
    that the price of a Rule 41(a)(2)
    voluntary dismissal with prejudice on the
    eve of trial in this hotly-litigated 1994
    case is payment of reasonable costs."
    Chavez v. Ill. State Police, No. 94 CV
    5307 (N.D. Ill. Nov. 19, 1999). It is
    true that a plaintiff seeking a voluntary
    dismissal "is not required to accept
    whatever conditions the district court
    may impose." Marlow v. Winston & Strawn,
    
    19 F.3d 300
    , 304 (7th Cir. 1994). The
    appropriate response, however, would be
    to decline to accept the conditions, not
    to accept them and then argue that their
    imposition was an abuse of discretion.
    Plaintiffs agreed to the district court’s
    conditions and then dismissed their
    claims with prejudice. We find that the
    order requiring payment of costs as a
    prerequisite to voluntary dismissal did
    not constitute an abuse of discretion.
    Costs were properly assessed by the
    district court.
    Because the plaintiffs have not
    prevailed on appeal, we need not reach
    the issue of whether it would have been
    proper to require plaintiffs to pay costs
    even if their appeal had been successful.
    III.   Conclusion
    Notwithstanding the disposition of this
    case, we recognize the destructive
    effects of racial and ethnic profiling by
    any police agency. Plaintiffs have not
    proven that the Operation Valkyrie
    officers of the Illinois State Police
    stop, detain, and search African-American
    and Hispanic motorists on the basis of
    racial or ethnic profiling. Yet,
    unfortunately, the oft-cited public
    perception that race and ethnicity play a
    role in law enforcement decisions on
    Illinois highways will no doubt remain.
    The ISP has asserted throughout this
    litigation that they do not condone race-
    based law enforcement action; much of the
    evidence in this case indicates that they
    endeavor to conduct police activity
    through means that respect constitutional
    rights. How to change public perception
    and demonstrate compliance with
    constitutional requirements is a matter
    the State of Illinois may wish to
    consider.
    On the basis of the foregoing analysis,
    we AFFIRM the district court’s grant of
    summary judgment in favor of the
    defendants on plaintiffs’ equal
    protection and supervisory liability
    claims, and we AFFIRM the dismissal of
    Peso Chavez’s right to travel claim.
    FOOTNOTES
    /1 For the purposes of this opinion, "white"
    is meant to indicate "white, non-
    Hispanic."
    /2 The field report form permits racial
    identification of a citizen as, inter
    alia, Mexican, Puerto Rican, or Other
    Hispanic; for the purposes of analysis,
    Shapiro combined the several Hispanic
    categories into one. The citations and
    warnings database does not include infor-
    mation on race and ethnicity, so plain-
    tiffs’ experts estimated the number of
    Hispanic motorists contained in this
    database through analysis of the Spanish
    surnames provided by the U.S. Census
    Bureau. As there is no cohesive set of
    surnames that would allow identification
    of whites or African-Americans, there is
    no analysis of the citations and warnings
    database with respect to those groups.
    /3 Plaintiffs subsequently discovered that
    the Center had presented the experts with
    incomplete or incorrect data. The dis-
    trict court granted a motion to stay
    defendants’ then pending motion for par-
    tial summary judgment so plaintiffs could
    obtain a new analysis of the data. Plain-
    tiffs found the new statistics to be more
    favorable than the original data, so they
    sought to withdraw the original expert
    opinions, and substitute new, revised
    versions. This motion was denied. Chavez
    v. Ill. State Police, 
    27 F. Supp. 2d 1053
    , 1065 (N.D. Ill. 1998). As far as we
    can determine, the revised expert opin-
    ions are the ones presented by the plain-
    tiffs on appeal.
    /4 The magistrate judge focused only on Rule
    20, and did not discuss the relevancy of
    Rule 15(a), which discusses amending the
    pleadings, or Rule 21, which addresses
    misjoinder and non-joinder of parties.
    The district judge did refer to case law
    addressing the Rule 15(a) standard for
    denying leave to amend a complaint,
    though she did not address the text of
    this rule. We feel discussion of both
    Rule 15 and 20 is appropriate, therefore
    we address both.
    /5 ISP officers are required to radio head-
    quarters when making a stop, as discussed
    above. However, it is not clear from the
    record how long this radio log is main-
    tained, or whether plaintiffs attempted
    discovery along these lines.
    /6 Lee identified Lauterbach as a person in
    his late twenties or early thirties with
    a mustache and a tan uniform, driving a
    white or tan ISP vehicle with flashing
    lights on top. In contrast, the ISP
    states that Lauterbach would have been a
    mustache-less, forty-six year old trooper
    wearing green pants, driving a plain blue
    squad car with lights located in the
    grill. Lee stated that Fraher wore a
    normal state trooper’s uniform and drove
    a vehicle with blue flashing lights lo-
    cated on top. The ISP states that Fraher
    wore green pants and a baseball cap,
    drove a vehicle with a red rotating light
    on the dash, and patrolled with his ca-
    nine Zeus in the car, whom Lee did not
    see or hear.
    /7 The instant case is one of several cur-
    rently in progress. See Daniels v. City
    of New York, No. 99 CIV. 1695 (SAS), 
    2001 WL 62893
     (S.D.N.Y. Jan. 25, 2001) (certi-
    fying a class of persons stopped and
    frisked within the city of New York);
    Ledford v. City of Highland Park, No. 00
    C 4212, 
    2000 WL 1053967
     (N.D. Ill. July
    31, 2000) (certifying a class action of
    persons subjected to racial profiling by
    the Highland Park Police Department);
    Farm Labor Org. Comm. v. Ohio State High-
    way Patrol, 
    95 F. Supp. 2d 723
     (N.D. Ohio
    2000) (ruling on various claims in a
    class action suit challenging the ques-
    tioning of Hispanic motorists about their
    immigration status); State of New Jersey
    v. Ballard, 
    752 A.2d 735
     (N.J. Super. Ct.
    App. Div. 2000) (granting discovery in
    furtherance of a claim that the N.J.
    state police selectively enforce the
    motor vehicle laws).
    /8 Plaintiffs argued that their equal pro-
    tection claims should be analyzed under
    the pattern and practice analysis used in
    Int’l Bhd of Teamsters. The pattern and
    practice analysis is only relevant to
    statutory schemes which utilize the Mc-
    Donnell-Douglas burden shifting frame-
    work, like Title VII, and thus it can not
    be used here.
    /9 The Hunter plaintiffs used their statis-
    tics to satisfy the effect prong; howev-
    er, they also had "convincing direct
    evidence" of discriminatory intent and it
    was through proof of both discriminatory
    effect and intent that they proved a
    violation of the Equal Protection Clause.
    /10 The ISP issued a total of 3.1 million
    citations and warnings over the period
    from January 1990 through February 1997.
    Citations and warnings issued by the same
    officer at the same time were grouped
    together as one incident.
    /11 The defendants cited this number as the
    number of total field reports, after
    excluding reports by administrative and
    commercial vehicle troopers. Plaintiffs
    have not stated that this is an unjusti-
    fiable exclusion, nor have they indicated
    what the total number of field reports
    would be without this exclusion.
    Shapiro’s report does not say how many
    field reports he reviewed, just that he
    analyzed the reports from 1985-1997.
    Ginger’s report indicates that the field
    report database included 1.4 million
    field reports, though if this is based on
    the same database as Shapiro’s report, it
    means that they both reviewed field re-
    ports from 1985-1989, years that were not
    included in the citations and warnings
    database (which covered 1990 to 1997). In
    the absence of any proffered alternative,
    we thus assume that only 88,618 of the
    citations and warnings resulted in field
    reports, as stated by the defendants.
    /12 The Supreme Court has refrained from
    identifying the constitutional source of
    this right. See Saenz, 526 U.S. at 501
    (noting that the right of "free ingress
    and regress to and from" neighboring
    states was expressly mentioned in the
    text of the Articles of Confederation).
    In light of this uncertainty, we examine
    whether the plaintiffs state a legal
    claim under this component, even though
    they only allege a violation of their
    rights under the Privileges and Immuni-
    ties Clauses of the Constitution.
    /13 In the district court, plaintiffs also
    brought claims against Terrance Gainer,
    the Director of the ISP, and Edward
    Kresl, District Commander of the ISP.
    These claims were dismissed under Rule 16
    of the Federal Rules of Civil Procedure
    on the basis of the court’s granting of
    summary judgment on the equal protection
    claim. Plaintiffs’ briefs to this court
    only alleged error in the district
    court’s grant of summary judgment with
    respect to defendant Snyders, though one
    footnote in their equal protection analy-
    sis asked us to reinstate the supervisory
    claims against Gainer and Kresl. We will
    not reinstate these claims as plaintiffs
    did not object to the magistrate judge’s
    recommendations in front of the district
    court judge and therefore can not chal-
    lenge them now.
    

Document Info

Docket Number: 99-3691

Citation Numbers: 251 F.3d 612

Judges: Per Curiam

Filed Date: 5/23/2001

Precedential Status: Precedential

Modified Date: 1/12/2023

Authorities (79)

United States v. Anthony L. Olvis, A/K/A Tony Angela D. ... , 97 F.3d 739 ( 1996 )

alice-textor-cross-appellees-v-board-of-regents-of-northern-illinois , 711 F.2d 1387 ( 1983 )

John C. Babcock v. G. McDaniel , 148 F.3d 797 ( 1998 )

G. Heileman Brewing Co., Inc. v. Joseph Oat Corporation , 871 F.2d 648 ( 1989 )

john-c-boland-v-clyde-wm-engle-phillip-j-robinson-harold-sampson , 113 F.3d 706 ( 1997 )

Nelison Anderson, Harold Davis, David Cain, James Heflin, ... , 915 F.2d 313 ( 1990 )

Dennis Marlow and Provest, Incorporated, Formerly Known as ... , 19 F.3d 300 ( 1994 )

patrick-bell-sr-etc-v-city-of-milwaukee-howard-johnson-and-edwin , 746 F.2d 1205 ( 1984 )

diana-mira-delores-g-mira-and-james-o-mira-individually-and-on-behalf , 107 F.3d 466 ( 1997 )

samantha-salgado-a-minor-by-her-father-and-next-friend-edwin-salgado-and , 150 F.3d 735 ( 1998 )

ronnie-b-greer-v-debra-h-amesqua-alan-seeger-margaret-macmurray-byron , 212 F.3d 358 ( 2000 )

leblang-motors-ltd-and-wayne-a-leblang-v-subaru-of-america-inc , 148 F.3d 680 ( 1998 )

retired-chicago-police-association-an-illinois-not-for-profit-corporation , 7 F.3d 584 ( 1993 )

Lawrence C. Bieneman, on His Own Behalf and on Behalf of ... , 838 F.2d 962 ( 1988 )

Cheryll GRAY, F/K/A Cheryll Lengyel, Plaintiff-Appellant, v.... , 854 F.2d 179 ( 1988 )

linwood-cowen-and-jean-cowen-on-behalf-of-themselves-and-all-others , 70 F.3d 937 ( 1995 )

Intercon Research Associates, Ltd. v. Dresser Industries, ... , 696 F.2d 53 ( 1982 )

United States v. Erick Mitchell , 778 F.2d 1271 ( 1985 )

rose-gossmeyer-v-jess-mcdonald-individually-and-as-director-of-illinois , 128 F.3d 481 ( 1997 )

robert-l-tucker-v-united-states-department-of-commerce-robert-a , 958 F.2d 1411 ( 1992 )

View All Authorities »