State of Iowa v. Tommy Tyler, Jr. , 830 N.W.2d 288 ( 2013 )


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  •                IN THE SUPREME COURT OF IOWA
    No. 11–1065
    Filed April 26, 2013
    STATE OF IOWA,
    Appellee,
    vs.
    TOMMY TYLER, JR.,
    Appellant.
    On review from the Iowa Court of Appeals.
    Appeal from the Iowa District Court for Polk County, William A.
    Price (suppression motion) and Scott D. Rosenberg (trial), Judges.
    Defendant appeals from the district court’s denial of his motion to
    suppress, which was affirmed by the court of appeals. DECISION OF
    COURT OF APPEALS VACATED; DISTRICT COURT JUDGMENT
    REVERSED AND CASE REMANDED FOR FURTHER PROCEEDINGS.
    Gary D. Dickey of Dickey & Campbell Law Firm, P.L.C., Des
    Moines, for appellant.
    Thomas J. Miller,     Attorney General, Bridget A. Chambers,
    Assistant Attorney General, John P. Sarcone, County Attorney, and
    David M. Porter, Assistant County Attorney, for appellee.
    2
    ZAGER, Justice.
    In this case, we are asked to determine whether law enforcement
    had probable cause to believe that an equipment violation was occurring
    under Iowa Code section 321.37(3), which prohibits an owner of a motor
    vehicle from placing a frame around a license plate that obstructs the
    view of the plate. If probable cause is not present to justify the stop, the
    State asks us to decide whether reasonable suspicion of the equipment
    violation is sufficient to support a traffic stop.
    The district court denied the motion to suppress, and Tyler was
    convicted of operating a motor vehicle while intoxicated (OWI), second
    offense, in violation of Iowa Code section 321J.2 (2009). Tyler appeals,
    arguing the district court erred in denying his motion to suppress. We
    transferred the case to the court of appeals, which affirmed. We granted
    further review. For the reasons expressed below, we vacate the decision
    of the court of appeals, reverse the judgment of the district court, and
    remand for further proceedings.
    I. Background Facts and Prior Proceedings.
    On October 13, 2010, at approximately 2:00 a.m., Johnston Police
    Officer Brad Lowe was sitting stationary in his marked patrol car in the
    parking lot of the Dragon Car Wash on Merle Hay Road. Officer Lowe
    observed Tommy Tyler’s white Cadillac Escalade turn northbound onto
    Merle Hay Road from Johnson Drive, past Officer Lowe’s position. Officer
    Lowe testified that as Tyler’s vehicle approached his position, “it
    appeared the vehicle had a tinted license plate cover on the front of the
    license plate.” As the vehicle pulled past, Officer Lowe testified, “I then
    pulled out behind the vehicle and also noticed that it had a license plate
    cover obstructing the view of the plate on the rear as well.” Officer Lowe
    recognized the vehicle as the same one he had attempted to stop two
    3
    days earlier, also because of his concern regarding “tinted” license plate
    covers.
    Officer Lowe testified that because he found it difficult to run the
    license plate on the vehicle, he initiated the traffic stop, which was
    captured on videotape from his squad car. Prior to making contact with
    the driver, however, Officer Lowe was able to view all of the numbers and
    letters printed on the rear license plate, saw the “Iowa” printed at the top
    of the license plate, observed the county displayed on the bottom of the
    plate, and had a full view of the registration sticker. Based upon these
    observations, Officer Lowe was able to quickly and accurately call the
    plate information into dispatch.
    After making initial contact with Tyler and advising him of the
    reason for the stop, Officer Lowe detected an odor of an alcoholic
    beverage coming from within the vehicle and noted that Tyler’s speech
    was slow. Based on these observations, Officer Lowe initiated an OWI
    investigation.   This investigation culminated in a breathalyzer test
    indicating Tyler had a blood alcohol content of .147.
    Tyler filed a motion to suppress the evidence discovered as a result
    of the stop. He argued the stop violated the Fourth Amendment of the
    United States Constitution, and article I, section 8 of the Iowa
    Constitution, both of which prohibit unreasonable search and seizure.
    Tyler argued that Officer Lowe lacked either reasonable suspicion or
    probable cause to justify the stop.
    Evidence admitted at the suppression hearing, including the in-car
    videotape, photographs, and witness testimony, demonstrated that both
    the rear and front license plate covers were clear rather than tinted. The
    videotape of the stop shows Officer Lowe was able to read the license
    plate in order to provide the information to his dispatcher as both
    4
    vehicles were coming to a stop. Officer Lowe indicated that he had not
    attempted to read and call in the license plate prior to that point. He did,
    however, testify that the license plate was “blurred” and that he could
    not read the plate when he had initially turned on his lights.
    The district court denied Tyler’s motion to suppress. After a bench
    trial, Tyler was convicted of OWI, second offense.             Tyler appealed,
    arguing the district court erred in failing to suppress the evidence. The
    court of appeals affirmed the district court’s ruling. We granted further
    review.
    II. Standard of Review.
    Tyler asserts his state and federal constitutional rights to be free
    from unreasonable search and seizure were violated.            Because of the
    constitutional dimensions of these claims, our review is de novo. State v.
    Pals, 
    805 N.W.2d 767
    , 771 (Iowa 2011). A de novo review constitutes “an
    independent evaluation of the totality of the circumstances as shown by
    the entire record.” 
    Id. (citation and
    internal quotation marks omitted).
    We give “deference to the factual findings of the district court due to its
    opportunity to evaluate the credibility of the witnesses, but [we are] not
    bound by such findings.”          
    Id. (citation and
    internal quotation marks
    omitted).
    III. Discussion and Analysis.
    A. Unreasonable         Search    and    Seizure.     Both   the   Fourth
    Amendment to the United States Constitution and article I, section 8 of
    the Iowa Constitution prohibit unreasonable searches and seizures by
    the government. State v. Kinkead, 
    570 N.W.2d 97
    , 100 (Iowa 1997) (“The
    Fourth Amendment to the United States Constitution and article I,
    section     8   of   the   Iowa   Constitution   protect   individuals   against
    unreasonable searches and seizures by government officials.”).            As we
    5
    have consistently stated, “[W]e jealously protect this court’s authority to
    follow an independent approach [to evaluate claims made] under our
    state constitution.” 
    Pals, 805 N.W.2d at 771
    . Where a party raises both
    state and federal constitutional claims but does not argue that a
    standard independent of the federal approach should be employed under
    the state constitution, we ordinarily apply the substantive federal
    standards but reserve the right to apply the standard in a fashion
    different from federal precedent. State v. Bruegger, 
    773 N.W.2d 862
    , 883
    (Iowa 2009). Because Tyler has not proposed a standard for interpreting
    our search and seizure provisions under the Iowa Constitution differently
    from its federal constitutional counterpart, we will apply the general
    standards as outlined by the United States Supreme Court for
    addressing a search and seizure challenge under the Iowa Constitution.
    See 
    id. The United
        States    Supreme      Court    has    considered   the
    constitutionality of traffic stops under the Fourth Amendment in a
    number of cases. A traffic stop is unquestionably a seizure under the
    Fourth Amendment. Berkemer v. McCarty, 
    468 U.S. 420
    , 436–37, 104 S.
    Ct. 3138, 3148, 
    82 L. Ed. 2d 317
    , 332–33 (1984); State v. Heminover,
    
    619 N.W.2d 353
    , 357 (2000) (“When the police stop a car and temporarily
    detain an individual, the temporary detention is a ‘seizure’ within the
    meaning of the Fourth Amendment.”), abrogated on other grounds by
    State v. Turner, 
    630 N.W.2d 601
    , 606 n.2 (Iowa 2001).
    Under the Fourth Amendment, the United States Supreme Court
    has recognized that allowing law enforcement unbridled discretion in
    stopping    vehicles   “ ‘would   invite   intrusions   upon   constitutionally
    guaranteed rights.’ ” Delaware v. Prouse, 
    440 U.S. 648
    , 661, 
    99 S. Ct. 1391
    , 1400, 
    59 L. Ed. 2d 660
    , 672 (1979) (quoting Terry v. Ohio, 392
    
    6 U.S. 1
    , 22, 
    88 S. Ct. 1868
    , 1880, 
    20 L. Ed. 2d 889
    , 906 (1968)). When
    there is no probable cause or reasonable suspicion for a stop, an officer
    has the “kind of standardless and unconstrained discretion [that] is the
    evil the Court has discerned when in previous cases it has insisted that
    the discretion of the official in the field be circumscribed, at least to some
    extent.” 
    Id. Moreover, the
    Court recognized that individuals frequently
    spend significant time traveling in automobiles and must be entitled to
    protection against unreasonable searches and seizures when traveling.
    
    Id. at 662–63,
    99 S. Ct at 
    1401, 59 L. Ed. 2d at 673
    .              “Were the
    individual subject to unfettered governmental intrusion every time [she
    or] he entered an automobile, the security guaranteed by the Fourth
    Amendment would be seriously circumscribed.” 
    Id. B. Bases
    for Traffic Stops.       We have considered the scope of
    article I, section 8 of the Iowa Constitution in a traffic stop context. In
    State v. Tague, we held that briefly crossing the edge line on a divided
    roadway did not provide reasonable suspicion of intoxication to support a
    traffic stop or probable cause that a violation of Iowa Code section
    321.297 occurred under article I, section 8. 
    676 N.W.2d 197
    , 205–06
    (Iowa 2004).
    The State argues that the stop in this case may be supported
    under both probable cause and reasonable suspicion theories. If a traffic
    violation actually occurred and the officer witnessed it, the State has
    established probable cause. 
    Tague, 676 N.W.2d at 201
    . A reasonable
    mistake of fact does not negate justification for a stop based on probable
    cause. State v. Lloyd, 
    701 N.W.2d 678
    , 680–81 (Iowa 2005).
    Reasonable suspicion is a much more nebulous concept, and a
    standard that may or may not be appropriate to apply to smaller offenses
    such as traffic violations. Professor LaFave speculates that,
    7
    [i]f the [U.S.] Supreme Court were to address the issue [of
    whether the nature of the offense being investigated is
    relevant to whether reasonable suspicion can justify a traffic
    stop], it might well be that the Court would conclude that
    Terry stops upon less than probable cause cannot be made
    with respect to all offenses, so that a goodly number of traffic
    offenses would not be encompassed with the Terry
    reasonable-suspicion standard.
    Wayne R. LaFave, The “Routine Traffic Stop” from Start to Finish: Too
    Much “Routine,” Not Enough Fourth Amendment, 
    102 Mich. L
    . Rev. 1843,
    1851 (2004).
    Indeed, our own jurisprudence notes the unsettled nature of the
    law regarding when reasonable suspicion justifies traffic stops. See 
    Pals, 805 N.W.2d at 774
    (“Federal courts are divided on the issue of whether
    the Fourth Amendment per se prohibits police from stopping a vehicle
    based only on reasonable suspicion of a completed misdemeanor or civil
    infraction.”) Additionally, there is a school of thought that Terry compels
    a balancing test to justify the stop. 1
    Perhaps the greatest distinction between a probable cause analysis
    and a reasonable suspicion analysis is the purpose of the stop.                  Our
    decisions have universally held that the purpose of a Terry stop is to
    1Professor   LaFave has stated:
    [T]he [U.S. Supreme] Court characterized the Terry rationale as warrant[ing]
    temporary detention for questioning on less than probable cause where the
    public interest involved is the suppression of . . . serious crime, and has said
    that under Terry, seizures made on less than probable cause draw their
    justification from both the limited intrusions on the personal security of those
    detained and the substantial law enforcement interests being served. As several
    of the Court’s other Fourth Amendment decisions illustrate, the seriousness of
    the offense thought to be involved bears directly upon the substantiality of the
    law-enforcement interest; as one member of the Court put it, the Supreme Court
    has never suggested that all law enforcement objectives . . . outweigh the
    individual interests infringed upon so as to support a stop on reasonable
    suspicion.
    LaFave, 
    102 Mich. L
    . Rev. 1843 at 1851–52 (footnotes and internal quotation marks
    omitted).
    8
    investigate crime. See, e.g., 
    Tague, 676 N.W.2d at 204
    (noting that the
    police need only have reasonable suspicion to detain “for investigatory
    purposes”). Conversely, the purpose of a probable cause stop is to seize
    someone who has already committed a crime.             See, e.g., 
    id. at 201
    (“Probable cause exists if the totality of the circumstances as viewed by a
    reasonable and prudent person would lead that person to believe that a
    crime has been or is being committed and that the arrestee committed or
    is committing it.” (Citation and internal quotation marks omitted.)).
    C. Probable Cause.       We have held that “[w]hen a peace officer
    observes a violation of our traffic laws, however minor, the officer has
    probable cause to stop a motorist.” 
    Tague, 676 N.W.2d at 201
    ; see also
    United States v. Mendoza, 
    677 F.3d 822
    , 827 (8th Cir. 2012). However,
    the State bears the burden of proving by a preponderance of the evidence
    that the officer had probable cause to stop the motorist.            State v.
    Louwrens, 
    792 N.W.2d 649
    , 651 (Iowa 2010). If the State is unable to
    meet its burden, all evidence obtained at the stop must be suppressed.
    
    Id. at 651–52.
    In determining whether Officer Lowe observed a violation
    of our traffic laws, we will “give considerable deference to the trial court’s
    findings regarding the credibility of the witnesses,” but we will not be
    “bound by them.” See 
    Tague, 676 N.W.2d at 201
    .
    Probable cause is not the same standard as beyond a reasonable
    doubt. Probable cause may exist even if the officer’s perception of the
    traffic violation was inaccurate. The existence of probable cause for a
    traffic stop is evaluated “from the standpoint of an objectively reasonable
    police officer.” Ornelas v. United States, 
    517 U.S. 690
    , 696, 
    116 S. Ct. 1657
    , 1661–62, 
    134 L. Ed. 2d 911
    , 919 (1996). Indeed, “[t]he touchstone
    of the Fourth Amendment is reasonableness . . . .”          United States v.
    9
    Knights, 
    534 U.S. 112
    , 118, 
    122 S. Ct. 587
    , 591, 
    151 L. Ed. 2d 497
    , 505
    (2001).
    Officer Lowe testified that he observed a violation of Iowa Code
    section 321.37(3), which states: “It is unlawful for the owner of a vehicle
    to place any frame around or over the registration plate which does not
    permit full view of all numerals and letters printed on the registration
    plate.” Iowa Code § 321.37(3). He did not claim that he had probable
    cause to stop Tyler for any traffic violation such as speeding or
    disobeying a traffic signal. The only basis asserted by Officer Lowe for
    the stop was that he observed a violation of Iowa Code section 321.37(3).
    Our precedent is clear that a mistake of fact may justify a traffic
    stop. 
    Lloyd, 701 N.W.2d at 680
    –81; 
    Kinkead, 570 N.W.2d at 101
    (“We
    have . . . held that a mistaken basis for a stop does not necessarily
    render the stop invalid.”); State v. Melohn, 
    516 N.W.2d 24
    , 25 (Iowa 1994)
    (holding it was reasonable for police to stop a vehicle speeding away from
    the vicinity of gunshots, even though the facts later showed the
    individual was not involved in the gunfire); State v. Jackson, 
    315 N.W.2d 766
    , 767 (Iowa 1982) (holding as valid an officer’s stop of a vehicle for
    failure to display license plates, even though the officer later learned the
    vehicle was displaying proper temporary plates). “The . . . question is
    whether [the officer’s] mistake was an objectively reasonable one.” 
    Lloyd, 701 N.W.2d at 681
    .
    However, we have elected not to extend this permissiveness to
    mistakes of law, holding a mistake of law is not sufficient to justify a
    stop.     “[E]vidence derived from a stop based on a law enforcement
    officer’s mistake of law must be suppressed.” 
    Louwrens, 792 N.W.2d at 650
    .
    10
    We must first decide if Officer Lowe was mistaken.         If he was
    correct as to both the facts and the law, then probable cause existed to
    detain Tyler, and the evidence obtained as a result of that stop is
    admissible.     However, if we determine Officer Lowe was mistaken, we
    must determine whether he was mistaken as to the law or as to the facts.
    If he was mistaken as to the law, then probable cause based on that
    mistake of law cannot be asserted to justify the stop, and without further
    justification, the evidence obtained as a result of that stop must be
    suppressed. See 
    id. If we
    determine Officer Lowe was mistaken as to the
    facts, we must then decide if the mistake was objectively reasonable. If
    the mistake was objectively reasonable, probable cause existed, and the
    evidence is admissible. Alternatively, if Officer Lowe’s mistake of fact was
    not objectively reasonable, the evidence must be excluded.
    1. Mistake of Law. Officer Lowe wrote in his police report,
    I noticed the vehicle had a tinted license plate cover on the
    front license plate which is in violation of Iowa Code
    321.37(3) display of plates. As the vehicle passed my patrol
    car I observed it also had a tinted license plate cover on the
    rear license plate as well.
    In fact, the cited Code section does not proscribe tinted license
    plate covers.    Rather, it proscribes placement of any frame or cover
    “which does not permit full view of all numerals and letters printed on
    the registration plate.”   Iowa Code § 321.37(3).     Officer Lowe’s police
    report, standing alone, would be a mistake of law, and as such, would
    not allow the State to meet its burden of proof in establishing probable
    cause to stop Tyler’s vehicle.
    However, during the course of the suppression hearing, the State
    offered various alternative reasons for why the stop was justified.     We
    have held that the State is not limited to the reasons stated by the
    11
    investigating officer in determining whether either probable cause or
    reasonable suspicion existed for the stop.                
    Heminover, 619 N.W.2d at 357
    .
    Here, none of the reasons advanced by the State support a finding
    that Tyler’s plates violated Iowa law, and no testimony or evidence was
    introduced as an alternative reason for Tyler’s seizure. Officer Lowe told
    Tyler during the stop that he had pulled him over because of tinted
    license plates. Tinted license plates are not a violation of Iowa law, and
    the State does not contend otherwise. See Iowa Code § 321.37(3).
    Officer Lowe also seems to conflate the requirements of Iowa Code
    section 321.37(3) with the requirements of Iowa Code section 321.388.2
    During his testimony at the suppression hearing, Officer Lowe testified
    that “a license plate must be clearly legible from a distance of 50 feet.”
    None of our cases have interpreted section 321.388, but the court of
    appeals has held that “if the deputy had testified that he observed the
    plate from something that would approximate fifty feet, and it did not
    appear to be illuminated so as to be legible, we would likely find the stop
    reasonable.”      State v. Reisetter, 
    747 N.W.2d 792
    , 794 (Iowa Ct. App.
    2008). This Code section requires illumination sufficient to render the
    license plate clearly legible.             Officer Lowe does not contend the
    illumination of the plate was insufficient.              In fact, the evidence in the
    record is clearly to the contrary. The fifty-foot distance is only relevant
    when applied to the question of adequate illumination, indicating
    another mistake of law.
    2Iowa   Code section 321.388, entitled “Illuminating Plates,” provides “[e]ither the
    rear lamp or a separate lamp shall be so constructed and placed as to illuminate with a
    white light the rear registration plate and render it clearly legible from a distance of fifty
    feet to the rear.”
    12
    Finally, the State advances a theory in its brief suggesting that “the
    plate cover could have had a light coat of dust, mud or snow so as to
    render Tyler’s plate unreadable from an angle or from a distance,” in
    violation of Iowa Code section 321.38. 3 This argument was not raised
    below and, thus, was not considered by the district court. Generally, we
    will only review an issue raised on appeal if it was first presented to and
    ruled on by the district court. State v. Derby, 
    800 N.W.2d 52
    , 60 (Iowa
    2011). Nonetheless, no evidence was presented suggesting that any of
    these theories regarding possible obstruction of the plate may have been
    true. Again, the evidence is to the contrary as the videotape shows no
    foreign materials on the plate. It is not Tyler’s responsibility to prove a
    negative—that there was no conceivable reason for a stop.
    Recognizing that Officer Lowe’s understanding of the law regarding
    license plate covers was flawed, the State attempted to justify the stop
    with other laws, specifically Iowa Code sections 321.388 and 321.38.
    Under the facts of this case, neither of these other laws has been shown
    by the State to provide Officer Lowe with probable cause to justify his
    seizure of Tyler.       Consequently, we conclude that a mistake of law
    occurred.   Unless the State can demonstrate alternate justification for
    the stop, any evidence derived from the stop must be suppressed. See
    
    Louwrens, 792 N.W.2d at 650
    .
    3Section   321.38, in pertinent part, provides:
    321.38. Plates, method of attaching—imitations prohibited.
    Every registration plate shall at all times be securely fastened in a
    horizontal position to the vehicle for which it is issued so as to prevent the plate
    from swinging and at a height of not less than twelve inches from the ground,
    measuring from the bottom of the plate, in a place and position to be clearly
    visible and shall be maintained free from foreign materials and in a condition to
    be clearly legible.
    13
    2. Mistake of fact.   Tyler presented significant evidence at the
    suppression hearing, and then again at his trial, to indicate his license
    plate covers were clear and would “permit full view of all numerals and
    letters printed on the registration plate.” Tyler presented testimony from
    a private investigator, who attempted to recreate the situation the officer
    described, and concluded that Tyler’s license plate cover did not obscure
    the view of the license plate. The district court found this testimony was
    “not persuasive,” as it occurred “under different conditions and lighting.”
    The district court did not, however, enumerate these differences.          The
    test occurred at the same place as the initial incident. Tyler testified the
    lighting was the same, and Officer Lowe declined to offer an opinion on
    whether the lighting was the same. The re-creation took place earlier in
    the night than the 2:00 a.m. stop, but it was dark at both of these times.
    Officer Lowe did not suggest that weather conditions or dirt on the plate
    cover inhibited his ability to read the plate.         The test took place
    approximately three weeks after the incident, so the season was the
    same.     Neither the State nor the district court articulated specific
    reasons why the test should be given no credibility. Upon our de novo
    review, we find the re-creation probative as to what Officer Lowe likely
    saw.
    Additionally, Tyler introduced photographs of his license plate
    covers and a videotape of the stop on that evening. When Officer Lowe is
    following Tyler, the video is so grainy that it is difficult to see anything at
    all. Thus, it is not probative of what Officer Lowe saw. However, when
    Tyler pulled over in a parking lot, Officer Lowe was able to read the
    license plate accurately and completely to the dispatcher without
    hesitation.
    14
    No evidence supports an objectively reasonable basis for believing
    that Tyler’s plates were not in conformity with all of Iowa’s traffic laws.
    Despite acknowledging that he was a skilled police report writer, and
    further acknowledging that he understood the importance of the police
    report to the criminal justice process, Officer Lowe did not indicate in his
    report that his view of the license plate was obscured.
    Officer Lowe admitted he had no difficulty reading the license plate
    to dispatch prior to actually stopping Tyler’s vehicle as Tyler was slowing
    down. The videotape of the stop confirms he was able to read the plate
    without difficulty. In his testimony, Officer Lowe stated that the license
    plate was “blurred” and that the “cover creates a glare at times,” but did
    not indicate why he thought the cover itself created any blurring or glare,
    as opposed to the normal glare that would come from an uncovered white
    license plate or any of the other numerous colored license plates now
    offered by the Iowa Department of Transportation.         The condition of
    Tyler’s car, as seen in the videotape, is very clean.        Based on the
    photographs, the uncontroverted testimony of the defense witnesses, and
    the observable cleanliness of the vehicle’s exterior and license plate as
    shown in the videotape, we find no objectively reasonable fact that would
    support a finding that the license plates were in any way obstructed from
    Officer Lowe’s view.   In making credibility determinations, we examine
    extrinsic evidence for contradictions to that witness’s testimony.
    
    Mendoza, 677 F.3d at 827
    . We also examine a witness’s testimony for
    internal inconsistencies in making credibility determinations. 
    Id. The officer’s
    testimony that there was a “glare” and that the plates
    were occasionally “blurry” does not indicate any difference between
    Tyler’s covered plate and an uncovered license plate. If we were to hold
    that an officer’s mistaken conclusion that any plate that gave off a glare
    15
    or was blurry in the intermittent brightness of street lights at 2:00 in the
    morning had an illegal cover, we would be giving law enforcement officers
    carte blanche to pull over any motorist at any time, as sunlight could
    also cause glaring and blurriness on an uncovered plate. We decline to
    extend the authority of law enforcement officers to execute traffic stops
    based on the facts as described in this case.
    Officer Lowe admits he specifically targeted Tyler’s vehicle, as he
    had attempted to stop it a day or two earlier, ostensibly for the same
    tinted license plate cover issue.           Tyler’s friend, whose vehicle had
    identical license plate covers, testified that she had passed by Officer
    Lowe’s position immediately before Tyler passed by it. Yet, Officer Lowe
    did not stop her. This gives rise to the reasonable conclusion, upon our
    de novo review, that Officer Lowe may have targeted Tyler’s car for a
    reason other than an obscured license plate cover. 4 Based on the above
    analysis, we conclude that probable cause is lacking under both the
    Fourth Amendment and article I, section 8 of the Iowa Constitution.
    D. Reasonable Suspicion. Having found no probable cause, the
    State urges us to consider whether reasonable suspicion of the
    equipment violation provides a sufficient basis to justify the stop. In its
    review of the district court’s ruling on the motion to suppress, the court
    of appeals suggested that reasonable suspicion may not be enough to
    justify a stop such as this, based on dicta in Pals. In Pals, we stated,
    “Federal courts are divided on the issue of whether the Fourth
    Amendment per se prohibits police from stopping a vehicle based only on
    4Tyler,  who is black, argues he was the victim of racial profiling. We need not
    reach this argument on appeal. However, we do agree with Tyler that the possibility for
    racial profiling requires us to carefully review the objective basis for asserted
    justifications behind traffic stops.
    16
    reasonable suspicion of a completed misdemeanor or civil 
    infraction.” 805 N.W.2d at 774
    . 5 However, neither Pals nor the case at bar involved
    a completed misdemeanor.           Rather, Pals dealt with an ongoing civil
    infraction. 
    Id. Here, Tyler
    was ostensibly stopped in order to investigate
    an ongoing traffic offense.       Officer Lowe claims to have observed an
    ongoing violation of Iowa law—operation of a motor vehicle with an
    obscured license plate.
    In Terry, the United States Supreme Court found that law
    enforcement could stop citizens if swift action was required, “predicated
    upon the on-the-spot observations of the officer on the 
    beat.” 392 U.S. at 20
    , 88 S. Ct. at 
    1879, 20 L. Ed. 2d at 905
    . In deciding whether a stop is
    appropriate based on reasonable suspicion, a court must engage in a
    balancing test—balancing the governmental interest advanced by the
    seizure against the “intrusion upon the constitutionally protected
    interests of the private citizen” to be free from unnecessary seizure. 
    Id. at 21,
    88 S. Ct. at 
    1879, 20 L. Ed. 2d at 905
    . “Under Terry, police may
    stop a moving automobile in the absence of probable cause to investigate
    a reasonable suspicion that its occupants are involved in criminal
    activity.” 
    Pals, 805 N.W.2d at 774
    .
    We have described a stop based on reasonable suspicion under
    Terry as an “investigatory stop.” E.g., State v. Vance, 
    790 N.W.2d 775
    ,
    781 (Iowa 2010); 
    Tague, 676 N.W.2d at 204
    . Professor LaFave has noted
    that the purpose of a Terry stop is “to allow immediate investigation
    through temporarily maintaining the status quo. If reasonable suspicion
    exists, but a stop cannot further the purpose behind allowing the stop,
    5This contested issue, in fact, is the subject of much legal scholarship. See
    generally Sameer Bajaj, Policing the Fourth Amendment: The Constitutionality of
    Warrantless Investigatory Stops for Past Misdemeanors, 109 Colum. L. Rev. 309 (2009).
    17
    the investigative goal as it were, it cannot be a valid stop.” 4 Wayne R.
    LaFave, Search and Seizure: A Treatise on the Fourth Amendment § 9.3, at
    482 (5th ed. 2012) (citation and internal quotation marks omitted). The
    purpose of a Terry stop, then, is to investigate a crime.
    [I]f the officer has a legitimate expectation of investigatory
    results, the existence of reasonable suspicion will allow the
    stop—if the officer has no such expectations of learning
    additional relevant information concerning the suspected
    criminal activity, the stop cannot be constitutionally
    permitted on the basis of mere suspicion.
    
    Id. at 4.
    We have said that “ ‘[t]he principal function of an investigatory stop
    is to resolve the ambiguity as to whether criminal activity is afoot.’ ”
    
    Vance, 790 N.W.2d at 780
    (quoting State v. Richardson, 
    501 N.W.2d 495
    ,
    497 (Iowa 1993)). Though Officer Lowe testified he initially believed the
    plate to be obstructed due to it being tinted, he also testified that he was
    able to clearly read and relay the plate information to dispatch as soon
    as he attempted to do so. Once this ambiguity was resolved, there was
    no longer a need for further investigation. The stop, then, was not for the
    purpose of investigating an ongoing crime. If the State wants to rely on
    reasonable suspicion as justification for this stop, it must show that
    Officer Lowe was attempting to actively investigate whether a crime was
    occurring and that seizure was required in order to accomplish that
    purpose. The State did not make that showing. As a result, the State
    has not shown reasonable suspicion to justify the stop either under the
    Fourth Amendment or article I, section 8 of the Iowa Constitution.
    Because of our conclusion that reasonable suspicion was not present, we
    need not resolve the question of whether reasonable suspicion of a
    completed    misdemeanor     may   support    a   stop   under   the   Fourth
    Amendment or Article I, section 8 of the Iowa Constitution.
    18
    IV. Conclusion and Disposition.
    Based on our de novo review, we find Officer Lowe did not have
    either probable cause or reasonable suspicion to stop Tyler’s vehicle.
    This stop violated Tyler’s rights as guaranteed by both the Fourth
    Amendment of the United States Constitution, and article I, section 8 of
    the Iowa Constitution.    Thus, all evidence obtained in the subsequent
    stop is inadmissible.    We vacate the decision of the court of appeals,
    reverse the trial court’s ruling denying the motion to suppress, and
    remand the case for further proceedings consistent with this opinion.
    DECISION OF COURT OF APPEALS VACATED; DISTRICT
    COURT    JUDGMENT        REVERSED      AND    CASE    REMANDED        FOR
    FURTHER PROCEEDINGS.
    All justices concur.   Appel, J., concurs specially.   Mansfield, J.,
    concurs specially, in which Waterman, J., joins.
    19
    #11–1065, State v. Tyler
    APPEL, Justice (concurring specially).
    I join in the majority opinion. We have repeatedly stated when a
    party makes claims under parallel provisions of both the Iowa and
    Federal Constitutions but does not suggest an independent state
    constitutional standard, we apply the federal standards, but do not
    necessarily apply them in the same way as the United States Supreme
    Court.   See, e.g., State v. Becker, 
    818 N.W.2d 135
    , 150 (Iowa 2012)
    (“Even where a party has not provided a substantive standard
    independent of federal law, we reserve the right to apply the standard
    presented by the party in a fashion different than the federal cases.”);
    NextEra Energy Res. LLC v. Iowa Utils. Bd., 
    815 N.W.2d 30
    , 45 (Iowa
    2012) (“Even in cases where a party has not suggested that our approach
    under the Iowa Constitution should be different from that under the
    Federal Constitution, we reserve the right to apply the standard in a
    fashion at variance with federal cases under the Iowa Constitution.”);
    State v. Oliver, 
    812 N.W.2d 636
    , 650 (Iowa 2012) (reiterating that we
    apply a more rigorous cruel and unusual punishment analysis under the
    Iowa Constitution than a federal court would under the United States
    Constitution); State v. Pals, 
    805 N.W.2d 767
    , 771–72 (Iowa 2011) (“Even
    where a party has not advanced a different standard for interpreting a
    state constitutional provision, we may apply the standard more
    stringently than federal case law.”); State v. Bruegger, 
    773 N.W.2d 862
    ,
    883 (Iowa 2009) (“[W]e do not necessarily apply the federal standards in
    the same way as the United States Supreme Court.”); Varnum v. Brien,
    
    763 N.W.2d 862
    , 878 n.6 (“[W]e have jealously guarded our right to
    ‘employ a different analytical framework’ under the state equal protection
    clause as well as to independently apply the federally formulated
    20
    principles.” (citation omitted)); In re S.A.J.B., 
    679 N.W.2d 645
    , 648 (Iowa
    2004) (“In analyzing claims under Iowa Equal Protection Clause, we
    independently apply federal principles.”); Racing Ass’n of Cent. Iowa v.
    Fitzgerald, 
    675 N.W.2d 1
    , 6 (Iowa 2004) (“That brings us to the
    alternative manner in which the court might exercise its obligation to
    rule upon the state constitutional claim: by applying federal principles
    independently.”). Reserving the right to applying federal standards in a
    manner different than that of the United States Supreme Court as
    requested by the parties is not “freelancing,” but performing our duty
    under the Iowa Constitution. See State v. Baldon, ___ N.W.2d. ___, ___,
    
    2013 WL 1694553
    , at *27 (Appel, J., concurring). In this case, however,
    I agree with the majority in reaching the same result under both the Iowa
    and United States Constitutions.
    21
    #11–1065, State v. Tyler
    MANSFIELD, Justice (concurring specially).
    I join the court’s well-reasoned opinion. This case can be, and as a
    practical matter has been, decided under Fourth Amendment caselaw.
    When a party does not advocate a separate interpretation of article I,
    section 8, but simply argues federal constitutional precedent, we should
    not be freelancing under the Iowa Constitution without the benefit of an
    adversarial presentation. See State v. Baldon, ___ N.W.2d ___, ___, 
    2013 WL 1694553
    at *46 n.46 (Iowa 2013) (Mansfield, J., dissenting); see also
    State v. Lowe, 
    812 N.W.2d 554
    , 566 (Iowa 2012) (“ ‘[W]e generally decline
    to consider an independent state constitutional standard based upon a
    mere citation to the applicable state constitutional provision.’ ” (quoting
    State v. Effler, 
    769 N.W.2d 880
    , 895 (Iowa 2009) (Appel, J., specially
    concurring))).     Here   the   court   has   not   departed   from   federal
    constitutional precedent in the absence of separate Iowa constitutional
    briefing.   Instead, it has applied federal and state search and seizure
    provisions consistently, and in my view correctly.
    Waterman, J., joins this special concurrence.