Bianca Johnson v. Andrew Holmes ( 2019 )


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  •                                     UNPUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 18-1454
    BIANCA JOHNSON; DELMAR                    CANADA;      RODNEY       HUBBARD;
    SAVANNAH HUBBARD,
    Plaintiffs - Appellants,
    v.
    ANDREW HOLMES,
    Defendant - Appellee,
    and
    JOHN DOES 1-3; ALBEMARLE COUNTY,
    Defendants.
    Appeal from the United States District Court for the Western District of Virginia, at
    Charlottesville. Norman K. Moon, Senior District Judge. (3:16-cv-00016-NKM; 3:16-
    cv-00018-NKM)
    Argued: May 7, 2019                                          Decided: August 26, 2019
    Before MOTZ, KING, and THACKER, Circuit Judges.
    Affirmed in part, reversed in part, and remanded by unpublished per curiam opinion.
    ARGUED: Jeffrey Edward Fogel, Charlottesville, Virginia, for Appellants. Jim H.
    Guynn, Jr., GUYNN & WADDELL, P.C., Salem, Virginia, for Appellee. ON BRIEF:
    Julian F. Harf, GUYNN & WADDELL, P.C., Salem, Virginia, for Appellee.
    Unpublished opinions are not binding precedent in this circuit.
    2
    PER CURIAM:
    In this consolidated Fourteenth Amendment equal protection case, Bianca
    Johnson, Delmar Canada, Rodney Hubbard, and Savannah Hubbard (“Appellants”), who
    are all African American, assert that they were stopped and searched by Albemarle
    County Police Officer Andrew Holmes as a result of racial profiling.
    To prove their selective enforcement actions against Officer Holmes, Appellants
    offered statistical evidence obtained from Albemarle County. Appellants assert that this
    statistical evidence demonstrates a striking disparity between the percentage of traffic
    summonses that Holmes issues to African Americans, the percentage of traffic
    summonses that all other officers on the police force issue to African Americans, and the
    population of African Americans in Albemarle County.             According to Appellants,
    Holmes made it a practice to stop and ticket three times as many African Americans as
    Caucasians as compared to all other officers on the force, and more than twice as many as
    compared to all officers who worked the same sectors 1 as Holmes.
    The district court concluded that Appellants’ statistical evidence failed to
    demonstrate that similarly situated drivers of a non-protected class were treated
    differently than Appellants, and, therefore, the district court held that such evidence could
    not be admitted to prove that Holmes’s conduct had a discriminatory effect. Specifically,
    according to the district court, Appellants’ statistics failed to identify white drivers
    1
    While on patrol duty, officers are assigned to patrol a particular area of the
    county, called a sector.
    3
    presenting “no distinguishable legitimate enforcement factors that might justify making
    different enforcement decisions with respect to them.” J.A. 65–66. 2
    Because we conclude that the district court applied an improperly narrow
    definition of “similarly situated,” we reverse the district court’s decision to exclude the
    statistics for the purpose of proving discriminatory effect. However, because the record
    before us is insufficient for this court to determine whether the statistics offered establish
    Appellants’ claims as a matter of law, we remand to the district court for further fact
    finding consistent with the proper standard described herein.
    I.
    A.
    Appellants’ Traffic Stops
    This consolidated case arises from two separate traffic stops conducted by
    Holmes. The first stop involves Appellant Delmar Canada, the driver of the stopped car,
    and Appellant Bianca Johnson, the owner of the car and Canada’s fiancée. The second
    stop involves Appellant Rodney Hubbard, the driver of the stopped car, and his mother,
    Appellant Savannah Hubbard.
    2
    Citations to the “J.A.” refer to the Joint Appendix filed by the parties in this
    appeal.
    4
    1.
    Delmar Canada and Bianca Johnson
    Holmes was on duty as a patrol officer for the Albemarle County Police
    Department on April 26, 2014. As the district court described it, Holmes’s “main goal
    that day was to use traffic enforcement . . . as a tool to do criminal interdiction,”
    including using traffic stops to search for evidence of narcotics. J.A. 39–40 (internal
    quotation marks omitted). As Holmes explained in his deposition, this was necessary
    because “[n]o one drives around with signs on the side of their car that say ‘I’m carrying
    drugs.’” Id. at 40. In furtherance of these criminal interdiction efforts, Holmes parked
    his patrol vehicle in the parking lot of a Super 8 motel in Charlottesville, Virginia, which
    was located across the street from a 7-Eleven convenience store. Holmes then ran the
    license plates of vehicles in the parking lots of both businesses through a police database.
    After running the license plates on several other vehicles, Holmes ran the plates on
    a BMW 7 Series sedan and learned that the vehicle was registered to Appellant Johnson.
    Holmes then ran Johnson’s information in another police database, where Appellant
    Canada was listed as a person associated with Johnson. Holmes reviewed Canada’s
    information in the database, obtained a photograph of Canada, and learned that Canada’s
    driver’s license had been suspended for failing to pay child support.
    At some point during this process, an African American man exited the 7-Eleven
    and got in the driver’s seat of the BMW. Holmes matched the photograph from the
    police database to the man who entered the vehicle and determined that Canada was the
    driver. After Canada left the 7-Eleven’s parking lot, Holmes initiated a traffic stop of the
    5
    vehicle. Holmes informed Canada that his license was suspended. Canada stated that he
    did not know his license had been suspended. Canada contacted Johnson and arranged
    for her to bring the vehicle registration to him at the stop, which she did. After speaking
    with Appellants Canada and Johnson, Holmes and another officer who had joined the
    scene returned to Holmes’s patrol vehicle. While there, the other officer observed that
    Canada was driving a “nice car.” J.A. 42. Holmes noted that it was an “expensive car.”
    Id. Holmes then issued Canada a summons for driving on a suspended license.
    The next day, Holmes applied for and received a search warrant to search
    Appellants Canada and Johnson’s home for a license suspension notice, which DMV
    records showed had been sent to the home a year earlier. 3 In his trial testimony, Holmes
    expressed the view that obtaining a search warrant to search an individual’s home for a
    suspension notice could be used as an “investigative tool” by law enforcement to find
    evidence of possible other, non-traffic-related crimes for which there was not probable
    3
    Of note, the search warrant application was only for the suspension notice and
    made no mention of any other criminal activity. Despite this, at some point after the stop
    but before obtaining the search warrant, Holmes contacted the Jefferson Area Drug
    Enforcement (“JADE”) task force and inquired as to whether Canada was involved in any
    active drug investigations. Holmes was advised that Canada’s name was familiar, but he
    was not involved in any open investigations by the task force.
    Holmes testified that contacting JADE was in line with his “common practice,”
    because he “didn’t want to mess up anything they may have been doing” regarding
    Canada or his residence. J.A. 128. However, Holmes did not inquire about any active
    JADE investigations involving Johnson, who also resided in the home Holmes intended
    to search.
    6
    cause to search. J.A. 100. 4 Holmes testified that he had never before obtained a search
    warrant to search for a suspension notice, and he was unaware of any other officer in the
    department who had done so. According to Holmes, he had only recently learned about
    the use of search warrants in suspended license cases from another officer, Detective
    Schenk, who learned of the tactic during a police training session on gangs.
    The warrant directed officers to “forthwith search” Appellants’ residence, “either
    in day or night.” J.A. 43. Holmes waited five days before executing the warrant. Then,
    4
    In this case, the evidence of possible other, non-traffic-related crimes that
    Holmes apparently thought he might find at Appellants’ residence was related to
    narcotics:
    Q: You had found out that using a search warrant in a traffic
    matter was a useful investigative tool, hadn’t you?
    A: Yes, sir.
    Q: And that tool was useful beyond the fact of the actual
    traffic ticket.
    A: It’s an investigative tool. Yes, sir.
    ...
    Q: You knew if you went to the house with this search
    warrant and you found drugs, you could arrest him for the
    possession of drugs.
    ...
    A: [Y]es, if you find drugs in an apartment while you’re
    searching for something else that you’re legally there to
    search for, then you can begin an investigation into drugs.
    J.A. 100–101; see also id. at 112 (“Q: You were really there looking for narcotics. A: I
    was there looking for a DMV notification . . . . I wouldn’t have been surprised if I found
    drugs; but I was looking, searching for a DMV notification form.”).
    7
    on a Friday night at 11:19 PM, Holmes and two other officers arrived at Appellants’
    home and conducted the search, ostensibly for the one-page license suspension
    notification. They found nothing.
    2.
    Rodney Hubbard and Savannah Hubbard
    On September 11, 2015, Appellant Rodney Hubbard and his mother, Appellant
    Savannah Hubbard, were driving north on Route 29 and entered Albemarle County.
    Hubbard slowed down when he passed Holmes, who was standing outside his patrol car.
    A mile or two later, Hubbard noticed Holmes in his patrol car following behind Hubbard.
    This continued for three to four miles, until Holmes passed Hubbard. After another mile
    or two, Hubbard again noticed Holmes following him in his patrol car. At that point,
    Holmes pulled Hubbard over. Holmes claimed he stopped Hubbard because he had
    driven 65 mph in a 60 mph zone, but Hubbard denied he was speeding.
    Holmes asked Hubbard for his license and registration, but Hubbard did not have
    his license with him and gave Holmes an identification card instead. Holmes then asked
    Hubbard to step out of the vehicle and asked him whether Hubbard’s license was
    suspended in Virginia. Hubbard said he was unsure, but that his license in Maryland was
    expired. Holmes learned later during the stop that Hubbard’s Virginia license was, in
    fact, suspended.
    Holmes claimed he smelled marijuana and asked Hubbard why the vehicle
    smelled like marijuana. Hubbard denied that the vehicle smelled like marijuana and said
    there was no marijuana in the car, but he admitted that someone had smoked in the
    8
    vehicle three or four days before the stop. Hubbard stated he had placed an air freshener
    in his car to conceal the marijuana smell from his mother. In her deposition, Savannah
    Hubbard denied smelling marijuana.
    Holmes told Hubbard he was not under arrest.              Nevertheless, Hubbard was
    handcuffed, searched, and placed in the back of Holmes’s patrol car due to the alleged
    marijuana Holmes claimed he smelled in Hubbard’s vehicle. Savannah Hubbard, who
    was 75 years old, 5 was also searched and placed in another patrol car, and Hubbard’s car
    was searched. No drugs were found in the car. Holmes issued Hubbard a summons for
    driving with a suspended license.
    B.
    Appellants’ Proffered Statistical Evidence
    Pursuant to Appellants’ discovery request, Albemarle County generated the
    statistical evidence at issue in this case, which is located at J.A. 74, 75, 76, 77, and 78. 6
    Although the parties dispute what conclusions are to be drawn from these statistics, a
    general discussion of the charts created by the county is necessary at the outset.
    1.
    The chart at J.A. 75 depicts the general demographic data of Albemarle County as
    of 2016, as well as the demographic data of the specific sectors of the county that Holmes
    5
    Savannah Hubbard’s age is not in the record, but during oral argument,
    Appellants’ counsel noted that she was 75.
    6
    For reference, these pages of the J.A. are attached to this opinion.
    9
    patrolled most often. Overall in Albemarle County, 80.66% of the population is white,
    and just 9.69% of the population is black. Holmes usually patrolled Sector 1 or 2. J.A.
    75 shows that 68.04% of the population of Sectors 1 and 2 is white, while 18.21% is
    black.
    2.
    J.A. 74 depicts the number of Holmes’s traffic stops and summonses for the years
    2009 to 2015. In this timeframe, Holmes conducted 1,205 traffic stops and issued 655
    summonses.      For these 655 summonses, J.A. 74 also includes a breakdown of the
    summonses issued per year sorted by the race of the driver receiving the summons. 7 Per
    the charts provided by Albemarle County, in 2015, Holmes issued 92 summonses. Of
    these 92, he issued 47 summonses, or 51.08%, to black individuals and 44 summonses, or
    47.82% to white individuals. Out of the 655 summonses that Holmes issued from 2009
    to 2015, he issued 305 summonses, or 46.56%, to black individuals and 348 summonses,
    or 53.13%, to white individuals.
    3.
    J.A. 76 is titled “2015 County Traffic Statistics,” and it contains a chart of all
    summonses issued by the Albemarle County Police Department in 2015 sorted by the
    race of the driver receiving the summons. Per these statistics, in 2015, officers in the
    7
    Albemarle County tracks the number of traffic stops an officer conducts, but it
    does not record the race of the stopped driver if no summons was issued. Accordingly,
    data based on a driver’s race is only available for actual traffic summonses, not stops.
    10
    department issued a total of 8,219 summonses. Of those summonses, 6,626, or 80.6%,
    were issued to white drivers, and 1,412, or 17.2%, were issued to black drivers.
    4.
    J.A. 77 lists all officers other than Holmes who patrolled Sectors 1 and 2, along
    with the number of summonses 8 each officer issued in 2015 sorted by the race of the
    person receiving the summons. In total, the other officers on the force who worked the
    same sectors as Holmes 9 issued 285 summonses. Of these, 210 summonses, or 73.68%,
    8
    Of the statistics generated by Albemarle County, J.A. 77 is the only page that
    references “citations” rather than “summonses.” Although these terms are not defined in
    the record, all parties agreed during oral argument that “citations” and “summonses” are
    synonymous and can be used interchangeably to mean “writing a ticket.” See Oral
    Argument at 3:38–4:03, Johnson v. Holmes, No. 18-1454 (4th Cir. May 7, 2019),
    http://www.ca4.uscourts.gov/oral-argument/listen-to-oral-arguments (hereinafter “Oral
    Argument”) (“Court: ‘Are summonses and citations the same thing?’ Appellants’
    Counsel: ‘I believe so. . . . As far as I know, they are. But there’s nothing in the record to
    indicate that.’”); see also id. at 18:25–36 (“Appellee’s Counsel: ‘I think that summonses
    and citations are . . . two different words for the same thing. . . . Basically, that’s writing a
    ticket.’”). For the purposes of this opinion, we will use the term “summonses.”
    J.A. 77 is also the only page of statistics that does not reference traffic stops or
    summonses specifically. Accordingly, and as further discussed below, it is unclear
    whether the data in this chart reflects only traffic summonses, or if it includes non-traffic
    summonses issued by officers in Sectors 1 and 2.
    9
    Holmes testified that he was occasionally assigned to patrol Sector 3;
    accordingly, the data reflected on J.A. 74 could contain summonses he issued outside of
    Sectors 1 or 2. Although the specific demographic data on J.A. 75 and the summonses of
    other officers on J.A. 77 only pertain to Sectors 1 and 2, both counsel agreed at oral
    argument that Sector 3 is a more rural area than Sectors 1 and 2 and contains a higher
    percentage of white individuals and a lower percentage of black individuals.
    Accordingly, Holmes’s stops and summonses issued in Sector 3 cannot explain the racial
    disparity in Appellants’ statistics.
    11
    were issued to white individuals, and 62 summonses, or 21.75%, were issued to black
    individuals.
    5.
    J.A. 78 is titled “Traffic Unit.” Similar to J.A. 76 (which pertained to 2015), J.A.
    78 contains a chart of all summonses issued by the Albemarle County Police Department
    in 2014 sorted by the race of the driver receiving the summons. In 2014, officers in the
    department issued a total of 10,250 summonses. Of those summonses, 8,315, or 81.1%,
    were issued to white drivers, and 1,716, or 16.7%, were issued to black drivers.
    6.
    Thus, as portrayed in J.A. 74, 75, and 77, the population of Sectors 1 and 2 is
    68.04% white and 18.21% black. In 2015, Albemarle County police officers other than
    Holmes patrolling Sectors 1 and 2 issued 73.68% of summonses to white individuals and
    21.75% to black individuals.      Meanwhile, in 2015, Holmes issued 47.82% of his
    summonses to white individuals and 51.08% to black individuals.
    C.
    Procedural History
    Appellants Canada and Johnson and Appellants Rodney and Savannah Hubbard
    each brought 
    42 U.S.C. § 1983
     actions against Holmes, other unknown police officers,
    and Albemarle County. Both cases were originally assigned to Judge Glen E. Conrad of
    the United States District Court for the Western District of Virginia.
    12
    1.
    Canada/Johnson Case
    In the case of Appellants Canada and Johnson, Holmes and Albemarle County
    moved for summary judgment. Judge Conrad granted summary judgment to Albemarle
    County on the municipal liability claim, but denied summary judgment on Appellants’
    equal protection claim against Holmes. Specifically, Judge Conrad concluded that based
    on Appellants’ proffered statistics and other evidence, a jury could reasonably infer that
    Holmes’s stop and subsequent search of Appellants’ residence “were motivated by a
    discriminatory purpose and had a discriminatory effect.” J.A. 52.
    The case was subsequently reassigned to Judge Norman K. Moon, also of the
    United States District Court for the Western District of Virginia, and it proceeded to trial.
    Holmes filed a motion in limine to exclude Appellants’ statistical evidence. Judge Moon
    granted Holmes’s motion in part, concluding that although the statistics could be
    admitted for the purpose of showing discriminatory intent, 10 they could not be used to
    10
    As to discriminatory intent, Judge Moon concluded:
    Plaintiffs[] need only prove that racial animus was but one of
    the reasons Holmes undertook the course of action he did
    against them. In answering that question, the jury can take
    many factors into consideration, including any pattern of
    racially motivated actions by Holmes or any “historical
    background” of his actions that might reveal racial
    discrimination. In light of these jury considerations, the data
    showing Holmes’[s] comparably high arrest and citation rates
    of blacks is somewhat probative of his intent -- at least when
    combined with other evidence Plaintiffs may adduce at trial.
    (Continued)
    13
    show discriminatory effect because they “lack[ed] any information about Holmes’[s]
    actions against similarly situated individuals of a different race.” J.A. 70.
    During the course of the trial, Appellants sought to introduce a portion of the trial
    deposition of Captain Darrell Byers of the Albemarle County Police Department, wherein
    Captain Byers stated that in his career as a captain and a patrol officer, he had never
    sought a search warrant for a suspended license case and he was unaware of any other
    officer in the department who had done so. Holmes objected to this testimony on the
    basis that without proof that Captain Byers had faced similar circumstances, it was not
    relevant.   The district court sustained Holmes’s objection, concluding that Captain
    Byers’s testimony was insufficient to show that Holmes had deviated from normal
    procedure by obtaining a warrant for the suspension notice. See J.A. 169 (“Well, we
    don’t know that it’s a deviation. We don’t know how often we have the same or similar
    circumstances in all these cases.”).
    At the close of the plaintiffs’ case, Holmes moved for judgment as a matter of law.
    Judge Moon granted the motion in Holmes’s favor, reasoning that Appellants failed to
    provide evidence that Holmes’s conduct had a discriminatory effect, an element of
    Appellants’ selective enforcement claim.
    J.A. 64–65 (citations omitted). On appeal, the parties do not ask this court to disturb
    Judge Moon’s ruling as to discriminatory intent.
    14
    2.
    Hubbard/Hubbard Case
    Appellants Rodney and Savannah Hubbard’s case was also reassigned to Judge
    Moon.       Following Judge Moon’s exclusion of Appellants’ statistics in the
    Canada/Johnson case, Holmes moved for summary judgment in the Hubbards’ case on
    the basis that Appellants similarly could not prove discriminatory effect based on the
    statistics sought to be introduced in the Johnson/Canada trial. The district court granted
    Holmes’s motion. Consistent with his decision in the Johnson/Canada trial, Judge Moon
    concluded Appellants’ statistical evidence was insufficient to demonstrate discriminatory
    effect in the Hubbards’ case because it lacked information on white individuals who were
    similarly situated to Appellants but were treated differently.
    II.
    We review de novo the legal question of whether Appellants’ proffered statistics
    satisfied the standard for selective enforcement cases set out in United States v. Hare, 
    820 F.3d 93
     (4th Cir. 2016) (adopting the standard in United States v Armstrong, 
    517 U.S. 456
    , 465 (1996), as the standard for selective enforcement cases), and we review a
    district court’s relevancy and Federal Rule of Evidence 403 determinations for abuse of
    discretion. See United States v. Hassouneh, 
    199 F.3d 175
    , 182 (4th Cir. 2000). A trial
    court’s evidentiary ruling will be overturned only if it is “arbitrary and irrational.” Noel
    v. Artson, 
    641 F.3d 580
    , 591 (4th Cir. 2011).
    15
    III.
    The Equal Protection Clause of the Fourteenth Amendment prohibits police
    officers from selectively enforcing laws based on race. See Whren v. United States, 
    517 U.S. 806
    , 813 (1996). To prevail on a selective enforcement claim, Appellants must
    prove that Holmes’s conduct (1) was motivated by a discriminatory intent; and (2) had a
    discriminatory effect. See United States v. Armstrong, 
    517 U.S. 456
    , 465 (1996); Cent.
    Radio Co. v. City of Norfolk, 
    811 F.3d 625
    , 634–35 (4th Cir. 2016). As noted above,
    Judge Moon ruled that Appellants’ proffered statistics were admissible to prove
    discriminatory intent, but not discriminatory effect. On appeal, the parties dispute only
    the discriminatory effect element.
    A.
    Appellants’ Statistics
    Establishing discriminatory effect requires a plaintiff to show that similarly
    situated individuals of a different race were treated more favorably. See Armstrong, 
    517 U.S. at 465
    .   A plaintiff may make this showing by (1) naming similarly situated
    individuals of a different race who were treated differently by law enforcement; or (2)
    providing statistics that address this question. See Farm Labor Org. Comm. v. Ohio State
    Highway Patrol, 
    308 F.3d 523
    , 534 (6th Cir. 2002) (quoting Chavez v. Ill. State Police,
    
    251 F.3d 612
    , 638 (7th Cir. 2001)).
    The law has repeatedly recognized that statistics can be used to prove
    discriminatory effect. See, e.g., Yick Wo v. Hopkins, 
    118 U.S. 356
    , 374 (1886) (finding
    that a San Francisco ordinance banning the operation of laundries in wooden buildings
    16
    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);
    Armstrong, 
    517 U.S. at 467
     (noting that the similarly situated requirement was met by the
    “indisputable evidence” in Hunter v. Underwood, 
    471 U.S. 222
     (1985), that African
    Americans were 1.7 times as likely as whites to suffer disenfranchisement under the law
    in question).
    The ultimate question presented in this case is exactly what these statistics must
    show in order to meet the similarly situated requirement. Holmes does not dispute the
    fact that as a general matter statistics can be used, but he contends that, in this case,
    Appellants’ statistics were insufficient to demonstrate that similarly situated individuals
    of another race were treated differently.
    1.
    Standard for Similarly Situated Using Statistics
    We have held that individuals are similarly situated when there are “no
    distinguishable legitimate enforcement factors that might justify making different
    enforcement decisions with respect to them.” United States v. Hare, 
    820 F.3d 93
    , 99 (4th
    Cir. 2016) (quoting United States v. Venable, 
    666 F.3d 893
    , 900–01 (4th Cir. 2012)); see
    also United States v. Olvis, 
    97 F.3d 739
    , 744 (4th Cir. 1996). In other words, the
    statistics must show “similarly situated white individuals who could have been targeted
    for [the enforcement action] but were not.” Hare, 820 F.3d at 99. The statistics must
    compare apples to apples.
    17
    2.
    Holmes’s Proposed Enforcement Factors
    According to Holmes, Appellants’ proffered statistics failed to establish that other
    white drivers were similarly situated to Appellants because the statistics were not detailed
    enough to rule out possible legitimate enforcement factors that might justify making
    different enforcement decisions notwithstanding race.
    Specifically, Holmes asserts the following faults with Appellants’ statistical
    evidence, which he argues could constitute distinguishable legitimate enforcement
    factors: (1) the statistics are not (according to Holmes) limited to traffic stops and
    searches, but may include calls for service; 11 (2) the statistics do not include the reason a
    driver was pulled over; (3) the statistics do not identify individuals who were not stopped
    but could have been; (4) the statistics regarding summonses issued to white individuals
    by other officers on the force do not break down the types of offenses charged, the
    specific location of the offenses within Sectors 1 and 2, or specify whether the summons
    originated with a traffic stop or involved a search; and (5) “the statistics do not account
    for potential racial disparities that might result from crime-based assignments, such as if
    Holmes or his fellow officers were directed to focus on one type of crime or another.”
    Appellee’s Br. 11.
    11
    A call for service is when an officer is dispatched to a certain location in
    response to an emergency or nonemergency police call. See J.A. 154 (“[A]s a patrol
    officer, one of my duties is to answer what I was referring to as calls for service. It’s
    where dispatch dispatches you to a particular location to handle a call.”).
    18
    Thus, according to Holmes, Appellants’ statistics are insufficient because they are
    not detailed enough to exclude certain possible legitimate law enforcement factors that
    may explain the stark disparity in Holmes’s rate of traffic summonses for African
    American individuals.
    The district court agreed with Holmes, noting, “[T]he statistics do not break down
    citations and arrests by particular kind of crime, nor do they account for potential racial
    disparities that might result from crime-based assignments, such as if Holmes or his
    fellow officers were directed to focus on one type of crime or another.” J.A. 66. The
    district court concluded this was fatal to Appellants’ claim because “[w]ithout these types
    of information, the raw statistics simply don’t advance the ball because they leave the
    jury without any indication of whether ‘distinguishable legitimate enforcement factors’
    differentiate [Appellants] from some (as yet unidentified) non-black citizen who (by
    hypothesis) received different treatment.” Id. at 66–67.
    However, for the reasons explained below, none of Holmes’s proposed
    enforcement factors -- that is, the five alleged statistical faults he raised -- prevent
    Appellants’ statistical evidence from comparing apples to apples as a matter of law.
    a.
    Proposed Factor 1: Traffic Summonses and Calls for Service
    First, Holmes makes much of his assertion that Appellants’ statistics may include
    summonses resulting from calls for service in addition to traffic stops.
    19
    We note that nothing on the face of the statistical evidence at J.A. 74–78 suggests
    that the data includes calls for service, and Appellants dispute that it does. 12 However,
    even if true, we fail to see how the inclusion of calls for service in Appellants’ statistics
    could explain the racial disparity in Holmes’s traffic summonses as compared to other
    officers working the same sectors. As Holmes himself explained, a call for service
    occurs when dispatch sends an officer to a particular location to respond to a police call.
    Thus, even if calls for service are included in the statistics, this would affect the
    statistics for all officers, not only Holmes. Unless dispatch assigns Holmes, and no other
    officers, to respond to calls for service when a black individual is involved -- an absurd
    hypothetical that is nowhere supported in the record -- the inclusion of calls for service
    into Appellants’ statistics could not explain the stark disparity in the number of
    summonses that Holmes issues to black individuals as compared to other officers.
    12
    And, although Holmes’s briefing before this court argues unequivocally that
    Appellants’ statistical evidence was not limited to traffic summonses because it included
    summonses that resulted from calls for service, see Appellee’s Br. 3 (“Appellants
    mistakenly refer to the statistics on summonses as representing ‘traffic summonses.’”),
    Holmes testified at trial that he did not know whether the data was limited to traffic
    summonses. See J.A. 135–36 (“Q: So you don’t think these were traffic summonses that
    were on this document. A: I don’t know. The only thing that was on that document, as I
    recall, when it was presented, was total summonses issued. Again, I don’t know -- again,
    I don’t know whether they’re traffic summonses or whether they include all my
    summonses issued.”). Meanwhile, at oral argument before this panel, Holmes’s counsel
    seemed to acknowledge that Appellants had requested only traffic summonses from
    Albemarle County, not all summonses. See Oral Argument at 33:51–57 (“[Appellants’
    counsel] never asked for a breakdown of the summonses as to what they were for. It was
    just simply traffic summonses.” (emphasis supplied)).
    20
    Accordingly, this alleged fault does not prevent the statistics from meeting the similarly
    situated requirement.
    b.
    Proposed Factors 2, 3, and 4: Details the Statistics Do Not Show
    Holmes next takes issue with the particular details of each stop and summons that
    are not reflected in the aggregate data. Specifically, he faults Appellants’ statistical
    evidence for not revealing the reason each driver was stopped; whether a driver received
    more than one summons during the same stop; the specific types of offenses charged; the
    specific location of the traffic stop within the sector; or whether the encounter involved a
    search. Holmes also faults the statistical evidence for failing to identify individuals who
    were not stopped.
    Significantly, Holmes does not explain how the lack of these details makes
    Appellants’ statistics unreliable for the purpose of proving that Holmes’s conduct had a
    discriminatory effect, or how any of these factors could explain the racial disparity in
    Holmes’s traffic summonses. Appellants do not assert that Holmes’s alleged selective
    enforcement of traffic laws depended on, for example, the specific type of traffic offense
    at issue or the exact location of the stop within a sector. As for the statistics’ failure to
    identify individuals who were not stopped, such data is not recorded by the county -- and,
    indeed, would likely be impossible to track. How could something that was not done
    possibly be tracked? Further, all of the information that Holmes claims is missing with
    respect to his traffic summons statistics are similarly not included in the statistics for all
    21
    other officers on the force, so the statistics (at least facially) appear to compare apples to
    apples.
    More broadly, the level of detail that Holmes seeks from Appellants’ statistics is
    fundamentally at odds with the nature of aggregated data, which cannot include every
    conceivable detail about each traffic stop. Without an indication in the record that the
    details Holmes seeks would affect Appellants’ claims, the allegedly missing information
    does not constitute distinguishable legitimate enforcement factors that justify excluding
    the statistics.
    c.
    Proposed Factor 5: Accounting for Potential Crime-Based Assignments
    Finally, Holmes faults Appellants’ statistics for failing to “account for potential
    racial disparities that might result from crime-based assignments, such as if Holmes or his
    fellow officers were directed to focus on one type of crime or another.” Appellee’s Br.
    11. But there is zero evidence in the record, including in Holmes’s own testimony, that
    Albemarle County police officers in fact received crime-based traffic patrol assignments.
    Similarly, contrary to Holmes’s suggestion, there is no evidence that Holmes focused on
    patrolling different streets than other officers assigned to the same sector. 13
    These proposed “distinguishable legitimate enforcement factors” are not apparent
    on the face of Appellants’ statistics, but are instead possible differences that Holmes says
    13
    In fact, Holmes testified at trial that he patrolled the entire sector to which he
    was assigned: “We have an assigned sector and we’ll patrol that whole sector . . . in
    between calls for service in that sector.” J.A. 80.
    22
    might exist. In other words, Holmes assails the data -- which came from his employer and
    original co-defendant, Albemarle County Police Department -- for failing to affirmatively
    rule out his proposed enforcement factors when there is no record basis to believe such
    factors exist.
    It is notable that Holmes is in the best position to know whether his proposed
    enforcement factors are true; however, even he does not claim that he in fact received
    crime-based assignments or that he in fact patrolled different streets than the other
    officers assigned to the same sectors. Holmes merely asserts that Appellants’ statistics do
    not show whether he did or not.
    Holmes’s entirely speculative proposed factors do not constitute “distinguishable
    legitimate enforcement factors,” and they cannot justify excluding Appellants’ statistical
    evidence from proving discriminatory effect.
    3.
    The Proper Meaning of Distinguishable
    By accepting Holmes’s proposed enforcement factors as legitimate reasons to
    exclude Appellants’ statistics, the district court improperly defined “distinguishable
    legitimate enforcement factors” too narrowly. Rather than interpreting “distinguishable”
    to mean an enforcement factor that was identifiable or discernable from the statistics
    themselves or other evidence in the record, the district court interpreted it to mean any
    possible   differentiating   feature   --   even   if   not   supported   by   the   evidence
    -- between Appellants and the other drivers represented in Appellants’ statistics. Such a
    definition would require a plaintiff’s statistics to affirmatively disprove every conceivable
    23
    distinguishable factor that a defendant could raise. Aggregated data could never be so
    detailed.
    Although selective enforcement and selective prosecution claims may be difficult
    to prove, the Supreme Court has clarified that they are not (and should not be) impossible
    to prove. See Armstrong, 
    517 U.S. at 466
     (“The similarly situated requirement does not
    make a selective-prosecution claim impossible to prove.”). Accordingly, we conclude
    that when a plaintiff offers statistical evidence to prove discriminatory effect in a
    selective enforcement case, a “distinguishable legitimate enforcement factor” is one that
    is identifiable on the face of the statistics or made apparent from other evidence in the
    record. To hold otherwise would mean interpreting the law to permit a claim (and an
    avenue for bringing that claim through statistics), while simultaneously making it
    impossible for such a claim to make it to a jury (by imposing a standard of proof that
    defies statistics). This cannot be right.
    It is significant that Holmes may raise his proposed enforcement factors, if true,
    before the jury to attack Appellants’ statistical evidence at trial. Conversely, requiring a
    plaintiff’s statistics to be so detailed as to disprove any possible enforcement factor that a
    defendant may assert, even when there is no record evidence that any such factor exists,
    would mean a plaintiff’s proof must be completely unassailable both factually and as a
    matter of law to even submit it to a jury.
    Finally, Appellants could only bring this claim by relying on data received from
    Albemarle County. In other words, the very entity who decides what data to record is the
    same entity that would benefit from vague or incomplete statistics in selective
    24
    enforcement cases like this one. Although the burden of proving a selective enforcement
    claim is on the plaintiff, we cannot ignore the reality that the recordkeeping is entirely
    under the county’s control.            Defendants could evade liability by simply omitting
    necessary information from their records. The law should not create or allow such an
    incentive.
    4.
    Whether Appellants’ Statistics are Sufficient
    The remaining question is whether Appellants’ statistics are sufficient evidence of
    discriminatory effect when applying the correct standard -- that is, whether the statistics
    or other evidence in the record reveal no distinguishable legitimate enforcement factors
    that justify making different enforcement decisions between Appellants and the white
    drivers reflected in the statistics.
    At the outset, we note that Appellants’ statistics avoid the pitfall of the statistics at
    issue in United States v. Armstrong, United States v. Hare, and United States v. Olvis. 14
    Crucially, in each of these cases, the proffered statistics faltered because they said
    nothing about individuals of other races who committed the same crimes but were treated
    more favorably. For example, in Armstrong, the Supreme Court rejected the statistical
    evidence proffered by the criminal defendants, which was (as relevant here) a “study”
    14
    Although Armstrong and Olvis are selective prosecution claims, they apply the
    same standard as selective enforcement claims. See Hare, 820 F.3d at 99 (“This Court
    has adopted Armstrong’s standard for proving selective prosecution as the standard for
    proving selective enforcement.”).
    25
    conducted by the criminal defendants’ lawyers showing that “in every one” of the Office
    of the Federal Public Defender’s 24 cases in 1991 in which a defendant was prosecuted
    for conspiring to possess and distribute crack cocaine, the defendant was black.
    Armstrong, 517 U.S. at 468–69. The Court held that the study was insufficient because it
    addressed only the prosecuted black defendants and did not include evidence that
    similarly situated white defendants could have been prosecuted but were not. Instead, the
    study “presum[ed] that people of all races commit all types of crimes,” a presumption
    that the Court determined “ha[d] no proper place in the analysis of this issue.” Id. at
    469–70 (emphasis omitted). Thus, the flaw in the proffered study in Armstrong was that
    it did not demonstrate that anyone outside of the 24 black defendants could have been
    prosecuted, and the Court was unwilling to assume without evidence that such
    individuals of other races existed.
    But, significantly, Appellants’ statistics are unique in this respect.      Because
    Appellants charge one officer, Holmes, with selectively enforcing traffic laws based on
    race (as opposed to an entire department), Appellants can compare data about Holmes’s
    traffic stops and summonses by race with similar data from the rest of the police force
    and from individual officers assigned to the same sectors as Holmes. Thus, even though
    Albemarle County does not (and could not) record the races of specific drivers who could
    have been stopped but were not, nor does it record the races of drivers who were stopped
    but not ticketed, the percentage of white drivers stopped and ticketed by the other officers
    patrolling the same locations as Holmes serves as a proxy to show the general racial
    composition of drivers on the road that Holmes could have pulled over but did not.
    26
    But this is not necessarily enough to prove Appellants’ claims. As explained
    above, to satisfy the similarly situated requirement, there can be no distinguishable
    legitimate enforcement factors identifiable on the face of Appellants’ statistics or made
    apparent from other evidence in the record that justify making different enforcement
    decisions between Appellants and the white drivers reflected in the statistics. In this case,
    we cannot conclude on the current record that no legitimate enforcement factors are
    identifiable on the face of the statistics, because it is not clear whether Appellants’
    statistics on J.A. 77, which shows the summonses issued by other officers in Sectors 1
    and 2, are limited to traffic summonses.
    We have already addressed Holmes’s contention that Appellants’ statistical
    evidence may include summonses resulting from calls for service. As we noted, this
    argument does not explain the racial disparity in Holmes’s summonses, since any racial
    disparities created by calls for service would affect the other officers in Sectors 1 and 2 as
    well. Separate from the calls for service issue, however, Holmes more broadly attacks
    Appellants’ statistics as not being limited to traffic stops and traffic summonses, but as
    including all summonses issued by an officer for any reason.
    In response, Appellants maintain that the statistics reflect only traffic summonses.
    Appellants first assert that the statistics were provided by Albemarle County in response
    to a discovery request for traffic summonses. See Oral Argument at 3:34–38 (“All that
    we requested were traffic summonses and traffic stops.”). Secondly, Appellants argue,
    “the context of the charts demonstrate that they are traffic statistics.” Appellants’ Reply
    Br. 1 n.1.
    27
    As to Appellants’ second point, we agree that the titles and context of the charts
    provided by the county and proffered by Appellants on J.A. 74, 75, 76, and 78 indicate
    that these statistics refer to traffic stops and summonses. J.A. 74, which relates to
    Holmes’s traffic stops and summonses issued from 2009 to 2010, contains first a chart
    titled “Number of Traffic Stops Conducted by Year,” followed by an identically
    formatted chart titled “Number of Summonses Issued by Year.”                      The number of
    summonses appear to be a subset of the number of traffic stops (those stops that resulted
    in a summons being issued), and there is nothing on the face of the statistics nor any other
    evidence in the record to suggest that the data includes summonses from any source other
    than traffic stops.    J.A. 75 includes only demographic data; nevertheless, it notes:
    “Demographic data is not available for traffic stops unless a summons/citation is issued.”
    The inclusion of this note on J.A. 75, which otherwise contains no data about summonses
    or other enforcement activities, suggests that the statistics were generated in response to a
    data request specific to traffic enforcement. J.A. 76 and 78, titled “2015 County Traffic
    Statistics” and “Traffic Unit,” respectively, appear clearly tailored to traffic data and
    include charts related to traffic crashes, traffic fatalities, and DUI arrests.
    However, J.A. 77 does not specify that the summonses contained in that chart
    were traffic summonses. In fact, J.A. 77 is the only chart that contains no mention of
    “traffic.”   Notably, Holmes is not included in the chart on J.A. 77, so we cannot
    determine the value of the statistics on this chart. Thus, it is unclear whether all of
    28
    Appellants’ statistics compare Holmes’s traffic summonses to the other Sector 1 and 2
    officers’ traffic summonses. 15
    This leaves us with Appellants’ first point: that the statistics were provided by
    Albemarle County in response to Appellants’ discovery request for traffic summonses.
    However, the specific language of this data request is not in the record before us, and it
    was apparently not in the record before the district court. As discussed at oral argument:
    COURT: What did you ask for?
    APPELLANTS’ COUNSEL: I asked for traffic summonses.
    COURT: Traffic summonses?
    COUNSEL: Yes. In fact, I have the request here.
    COURT: Is the request in the record?
    COUNSEL: No.
    Oral Argument at 4:44–55.
    The question of what data is depicted in J.A. 77 arose repeatedly in oral argument,
    and Appellants’ counsel offered to supplement the record with Appellants’ original data
    request to show specifically what Appellants asked the county for:
    COURT: What we don’t know is what you asked for.
    You’ve made a representation to us about what you asked for.
    Both [counsel] told us, I think, that those discovery requests
    are not in the record, and the responses to them are not in the
    15
    If further fact-finding reveals that the data underlying J.A. 77 is not limited to
    traffic summonses, whether this is a distinguishable legitimate enforcement factor
    precluding Appellants’ statistics from satisfying the similarly situated requirement is a
    question for the district court to resolve in the first instance. We express no opinion on
    this matter.
    29
    record . . . . It was also suggested . . . that you all could move
    to supplement the record. You haven’t done that yet, right?
    APPELLANTS’ COUNSEL: But it’s not too late, I hope.
    COURT: You’re never going to know unless you make a
    motion, will you?
    Oral Argument at 37:06–41.
    But Appellants’ subsequent motion to supplement did not include Appellants’
    original data request to the county, but instead contained only the raw data used to
    compile the chart in J.A. 74. Thus, Appellants have so far been unable to support their
    assertion that they specifically requested traffic summonses from Albemarle County.
    Accordingly, this court is unable to decipher on this record whether Appellants’
    statistics satisfy the similarly situated requirement as a matter of law. Therefore, we
    reverse the district court’s ruling excluding Appellants’ statistics from trial for the
    purpose of proving discriminatory effect, and remand to the district court for further fact-
    finding and analysis per the correct standard explained in this opinion. 16
    Specifically, the question for the district court is whether there are distinguishable
    legitimate enforcement factors apparent from the face of the statistics themselves or other
    record evidence that justify making different enforcement decisions between Appellants
    and the white drivers reflected in the statistics, bearing in mind the unique power
    imbalances inherent in selective enforcement cases when plaintiffs are forced to rely on
    16
    In light of this remand, we accordingly dismiss as moot Appellants’ Motions to
    Supplement, ECF Nos. 45 and 48.
    30
    the police department’s statistics to prove their claim. If Appellants show that they asked
    for traffic stops and traffic summonses, they may rely on the information the county
    provides about its own officers in response to that request. Thus, in that case, the district
    court may safely presume J.A. 77 -- and the remaining statistical evidence created by the
    county -- reflects traffic summonses.
    B.
    Captain Byers’s Testimony
    Appellants also assert that the district court erred in excluding deposition
    testimony by Captain Byers of the Albemarle County Police Department that he had
    never sought a search warrant to look for a license suspension notice, nor was he aware
    of any other officer who had done so. The district court ruled this evidence inadmissible
    because Captain Byers’s statement did not establish that he had confronted similar
    circumstances as Holmes’s stop and subsequent citation of Appellant Canada -- that is,
    Captain Byers’s testimony did not state that he had issued a suspended license ticket to a
    driver who denied receiving a suspension notice in the mail.
    It strikes us that Captain Byers’s testimony could serve as evidence that Holmes
    deviated from standard procedure in applying for a search warrant for the suspension
    notice, which a jury may consider as evidence of discriminatory intent, if Captain Byers
    testified that he has, in fact, faced similar circumstances as Holmes but chose not to apply
    for a search warrant for a suspension notice. However, in the absence of such testimony,
    we cannot conclude that the district court’s evidentiary ruling was “arbitrary and
    31
    irrational.” Noel v. Artson, 
    641 F.3d 580
    , 591 (4th Cir. 2011). Accordingly, the district
    court did not abuse its discretion by excluding the evidence.
    IV.
    For these reasons, we affirm the district court’s evidentiary ruling regarding
    Captain Byers’s testimony. However, the district court erred in applying an improperly
    narrow definition of “similarly situated.” Therefore, we reverse the district court’s ruling
    excluding Appellants’ statistical evidence proffered to prove discriminatory effect.
    Because the record before us is insufficient for this court to determine whether the
    proffered statistics establish Appellants’ claims as a matter of law, we remand to the
    district court for further fact finding consistent with the proper standard described herein.
    AFFIRMED IN PART, REVERSED IN PART, AND REMANDED
    32