State of Iowa v. Bounmy Bounmy ( 2017 )


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  •                     IN THE COURT OF APPEALS OF IOWA
    No. 15-2225
    Filed February 8, 2017
    STATE OF IOWA,
    Plaintiff-Appellee,
    vs.
    BOUNMY BOUNMY,
    Defendant-Appellant.
    ________________________________________________________________
    Appeal from the Iowa District Court for Plymouth County, Gary E. Wenell
    (trial and sentencing) and Jeffrey L. Poulson (motion to suppress), Judges.
    A defendant challenges the traffic stop leading to her convictions for
    possession of a controlled substance and failure to affix a drug tax stamp.
    REVERSED AND REMANDED.
    Rees C. Douglas, Sioux City, for appellant.
    Thomas J. Miller, Attorney General, and Elisabeth S. Reynoldson,
    Assistant Attorney General, for appellee.
    Heard by Potterfield, P.J., and Doyle and Tabor, JJ.
    2
    TABOR, Judge.
    Bounmy      Bounmy      appeals    her    convictions    for   possession     of
    methamphetamine and failure to affix a drug tax stamp. She disputes the district
    court’s denial of her motion to suppress on four grounds: (1) the traffic stop
    lacked probable cause, (2) the stop was impermissibly pretextual, (3) the deputy
    unlawfully expanded the scope of the stop, and (4) the deputy did not obtain valid
    consent for the additional investigation. From our de novo review, we conclude
    the State did not meet its burden of showing individualized suspicion to justify
    prolonging the stop beyond its traffic-related mission—either to ask additional
    questions or to “escort” the passenger to the patrol car before conducting a dog
    sniff. Because the outcome here is controlled by In re Pardee, 
    872 N.W.2d 384
    ,
    391 (Iowa 2015),1 we reverse the denial of Bounmy’s motion to suppress and
    remand for further proceedings.
    I.     Facts and Prior Proceedings
    In the early hours of April 21, 2015, Deputy Sheriff Matt Struve received a
    phone call from fellow Plymouth County Deputy Scott Dorhout, who had fielded a
    request from an O’Brien County deputy to keep a lookout for a vehicle travelling
    southbound toward Sioux City. The car was “coming from a known drug house”
    in O’Brien County, according to the lookout request. Deputy Struve, who was
    part of the K-9 unit, joined Deputy Dorhout at an interchange on Highway 60/75
    so the two could watch for that car and relay any information they acquired about
    its occupants to the O’Brien County Sheriff’s Office.
    1
    The district court issued its suppression rulings in June 2015. Our supreme court did
    not issue its opinion in Pardee until December 11, 2015. Accordingly, the district court
    did not have the benefit of reading Pardee when analyzing the suppression motion.
    3
    Eventually, the deputies spotted a tan Honda Accord, which they believed
    fit the description2 from O’Brien County, and began to follow it.            At first, the
    Accord was travelling well below the posted common speed limit—fifty-five miles
    per hour in a sixty-five-mile-per-hour zone. But when the Accord passed through
    Hinton, the deputies determined the driver was speeding.                 Deputy Struve
    explained:
    [T]he speed limit drops to [fifty-five], [forty-five], [thirty-five]. In the
    [forty-five] mile per hour zone, I observed the vehicle going [forty-
    five] miles per hour. In the [thirty-five] mile per hour zone, I
    observed the vehicle[] going about [thirty-nine] miles per hour and
    then dropped down to [thirty-eight] miles per hour. At that time I
    proceeded to stop the vehicle.
    As Deputy Struve approached the car, he saw a male driver, a male passenger
    in the front seat, and a female passenger in the back seat. He requested the
    driver’s license, vehicle registration, and proof of insurance, which the driver
    provided after Bounmy, who was the backseat passenger, told the driver where
    the documents were kept.
    The deputy then took the driver back to the patrol car to write a warning
    for the speeding violation and to ask questions of the driver, a practice the deputy
    routinely employed when conducting a traffic stop. Deputy Struve also ran a
    check on the vehicle’s registration and a check for outstanding warrants on the
    driver. In response to Deputy Struve’s questions, the driver said he and the
    passengers had left Sioux City for a hospital “in the Spencer area” around
    midnight and were headed back to Sioux City, taking the same route home. But
    the driver didn’t know the name of the person they had been visiting or “exactly
    2
    Our record does not disclose how detailed a vehicle description the Plymouth County
    deputies received from O’Brien County.
    4
    where the hospital was.” Nor did the driver know the last name of the passenger
    sitting next to him in the Accord.        During their conversation, Deputy Struve
    noticed the driver had some difficulty speaking English, but he believed the driver
    was generally able to understand.3
    After Deputy Struve and the driver returned to the Accord, the deputy had
    a conversation with Bounmy. He did so because sometimes the passengers in a
    vehicle will give “inconsistent stories.”         Deputy Struve found Bounmy’s story
    varied slightly from what the driver had told him. Bounmy estimated they left
    Sioux City around 10:30 that night, she said they visited locations in addition to
    the Spencer hospital, and she described getting lost in Sanborn, a town in
    O’Brien County, on their way home.            Bounmy told Deputy Struve they were
    travelling back home that night because the driver worked in the morning, but
    when the deputy asked her what time he had to work, she said he didn’t work
    until the afternoon.
    Around this time, Deputy Struve issued a speed warning to the driver and
    told him he was free to leave. But then the deputy asked if the driver “would
    mind      sticking   around   for   a   few       additional   questions.”     Apparently
    misunderstanding Deputy Struve’s question, the driver responded he didn’t have
    any additional questions.        Deputy Struve clarified: “No, no.           I have some
    questions for you. Would you mind sticking around and answering a few more
    questions?” According to the deputy, the driver told him he understood and
    agreed to continue speaking to him.4
    3
    The record shows the driver and Bounmy are native Laotian speakers.
    4
    The driver did not testify at the suppression hearing or at trial.
    5
    At the suppression hearing, Deputy Struve synthesized his suspicions
    developed during the traffic stop:
    A. I was suspicious there was criminal activity due to the
    fact that the driver didn’t know the passenger’s last name. Knew
    the first name, didn’t know the last name. The direction of travel,
    the times that they had left, nothing was adding up to the times they
    should have been at the hospital and came back home from the
    hospital. The time he had to work the next day was actually not in
    the morning. It was in the afternoon. And there—there was time in
    there where I could sense some nervousness.
    Q. How about the fact that you’d been told by other law
    enforcement officers this vehicle had just left a drug house? A.
    And the fact that I’d been notified by O’Brien County.
    Q. Any suspicion of a particular controlled substance you
    thought was involved in this stop? A. At this point I . . . did not
    know what was involved within the stop.
    Deputy Struve directed everyone to exit the Accord so he could conduct a
    dog sniff for narcotics. According to the deputy, when he asked the driver “if he
    would mind if I walked my dog around the vehicle,” the driver “became very
    nervous and started kind of stumbling. He couldn’t really understand what I was
    trying to say anymore.”      Deputy Struve then asked Bounmy to assist in
    communicating with the driver. When the deputy asked Bounmy—who had been
    “friendly” and “willing to answer questions” up until that point—if there was
    anything illegal in the vehicle, “[s]he became nervous” and was “escorted to
    Deputy Dorhout’s car.”
    As Bounmy was “being escorted,” Deputy Struve saw her make “a quick
    movement . . . out of the corner of my eye. And when I turned around, I noticed
    that there was a baggie of white crystal-like substance . . . on the ground which I
    had not seen prior to her being right there.” A field test indicated the substance
    was methamphetamine. When questioned about the baggie, Bounmy initially
    6
    denied it was hers, stating “she was an old lady and . . . does not do that.” But
    moments later she claimed ownership of the methamphetamine. Then Deputy
    Struve walked his dog around the Accord, but the dog did not alert. He searched
    the car and found a glass pipe in the back where Bounmy had been seated.
    Deputy Struve arrested Bounmy. At the jail, a corrections officer recovered an
    additional package of methamphetamine from Bounmy’s bra.
    The State charged Bounmy by trial information with two counts of
    possession of a controlled substance, in violation of Iowa Code section
    124.401(5) (2015), two counts of failure to affix a drug tax stamp while being a
    habitual felon, in violation of Iowa Code sections 453B.3 and 453B.12, and one
    count of possession of contraband while being a habitual felon, in violation of
    Iowa Code section 719.7.      Bounmy filed a motion to suppress the evidence
    obtained as a result of the traffic stop; the motion alleged the deputy did not
    obtain consent for a dog sniff.
    Following a hearing, the district court overruled Bounmy’s motion,
    reasoning: “[T]he stop was not unreasonable as the driver was speeding. During
    the traffic stop, a baggie containing contraband was found next to the defendant,
    as such there was no search.” In response to Bounmy’s motion to enlarge, the
    court elaborated:
    As the traffic stop was valid, it was not pretextual. . . .
    Deputy Struve testified that after writing a warning, he
    advised the driver that he was free to go and asked if he would be
    willing to answer additional questions. At this point, the driver
    expressed difficulty understanding English and requested
    [Bounmy], who was a passenger in the backseat, and who had
    better English skills, to come to the car to assist him. In connection
    with [Bounmy] coming to the patrol car, the illegal drugs were found
    in plain view. Under the facts of this case, the officer did not
    7
    unlawfully expand [Bounmy’s] seizure for investigation unrelated to
    the purpose of the stop. . . .
    The Court finds that the driver requested [Bounmy’s]
    assistance for purposes of translating the conversation with the
    officer. The Court finds that this constitutes free and voluntary
    consent.
    The matter proceeded to a bench trial, and the court found Bounmy guilty
    of one count of possession of a controlled substance and one count of failure to
    affix a drug tax stamp. Bounmy now appeals.
    II.      Scope and Standard of Review
    Bounmy argues the district court should have granted her motion to
    suppress on federal and state constitutional grounds. Accordingly, our review is
    de novo.       See State v. Baldon, 
    829 N.W.2d 785
    , 789 (Iowa 2013).                 We
    independently evaluate the totality of the circumstances as demonstrated by the
    entire record.      See 
    id.
        We consider both the evidence presented at the
    suppression hearing as well as the evidence presented at trial. See State v.
    Carter, 
    696 N.W.2d 31
    , 36 (Iowa 2005). “[W]e give deference to the factual
    findings of the district court due to its opportunity to evaluate the credibility of the
    witnesses but are not bound by such findings.” State v. Lane, 
    726 N.W.2d 371
    ,
    377 (Iowa 2007).
    III.     Analysis
    A.       Was the traffic stop supported by probable cause?
    Citing State v. Tague, 
    676 N.W.2d 197
    , 203–04 (Iowa 2004), Bounmy
    argues the “single incident” of speeding observed by Deputy Struve was not
    sufficient to constitute probable cause for the traffic stop.5 She contends: “[The]
    5
    Bounmy does not challenge the accuracy of Deputy Struve’s speed determination.
    8
    driver was bringing the vehicle’s speed down and had previously held the speed
    down consistently. There were no other concerns about the vehicle or about the
    driving.”
    We find Deputy Struve had probable cause to stop the Accord based on
    the speed violation.       Probable cause occurs when the totality of the
    circumstances as viewed by a reasonable person would lead that person to
    believe: (1) a crime has been or is being committed and (2) the arrestee
    committed or is committing it. Tague, 
    676 N.W.2d at 201
    . “When a peace officer
    observes a violation of our traffic laws, however minor, the officer has probable
    cause to stop a motorist.” Id.; see also State v. Predka, 
    555 N.W.2d 202
    , 206
    (Iowa 1996) (finding officer who observed defendant driving five miles over the
    speed limit had probable cause to stop).
    Bounmy reads Tague too broadly. In Tague, the court found a driver’s
    “single incident of crossing the edge line [of the road] for a brief moment . . . did
    not give the police probable cause to stop Tague for a traffic violation under
    section 321.306.” 
    676 N.W.2d at 204
    . But this finding was based upon the
    court’s interpretation of Iowa Code section 321.306 (2001), which provided: “A
    vehicle shall be driven as nearly as practical entirely within a single lane and
    shall not be moved from such lane until the driver has first ascertained that such
    movement can be made with safety.” 
    Id. at 203
    . The court reasoned a violation
    of this statute “does not occur unless the driver changes lanes before the driver
    ascertains that he or she could make such movement with safety” and concluded
    that because the movement over the line was brief, the roadway was devoid of
    other traffic, and the officer did not observe the vehicle making any other erratic
    9
    movements, the State did not prove Tague violated section 321.306. See 
    id.
     at
    203–04.
    By contrast, Deputy Struve did observe a traffic violation—a vehicle
    travelling four miles per hour over the speed limit. Under Iowa Code section
    321.285(7) (2015), a person who drives at an “excessive speed in violation of a
    speed limit commits a simple misdemeanor.” While section 321.306 allows a
    driver to move outside of a lane when it is safe to do so, section 321.285(7)
    provides a driver no comparable discretion to travel above the posted speed limit.
    Accordingly, the Accord’s speed gave Deputy Struve probable cause to initiate a
    traffic stop.
    B.     Was the traffic stop impermissibly pretextual?
    Bounmy next argues the stop was pretextual. She compares the deputies’
    subjective reason for following the Accord (possible drug possession) with the
    articulated reason for the stop (speeding). Bounmy asserts the objective reason
    is suspect since the vehicle “was decelerating to comply with a speed limit.” She
    acknowledges a pretextual stop is permissible under the Federal Constitution,
    see Whren v. United States, 
    517 U.S. 806
    , 812–16 (1996), but, citing authority
    from Washington and New Mexico, urges us to ban pretextual stops under the
    Iowa Constitution.   The State contends we should continue to adhere to the
    objective federal approach and argues the alternative forwarded by Bounmy
    would be fraught with “evidentiary and practical problems.”
    10
    Recognizing her argument seeks a change in Iowa’s approach to
    pretextual stops, Bounmy asked the supreme court to retain her appeal.6 But the
    supreme court transferred the case to us. “We are not at liberty to overturn Iowa
    Supreme Court precedent.” State v. Hastings, 
    466 N.W.2d 697
    , 700 (Iowa Ct.
    App. 1990). We are bound by Kreps, where the court held the test for traffic
    stops is objective. 650 N.W.2d at 641; see also Harrison, 846 N.W.2d at 366
    (majority opinion) (citing Kreps with approval).
    C.     Did the deputy impermissibly prolong the stop?
    Having determined Deputy Struve was justified in stopping the Accord
    based on the driver exceeding the speed limit, we turn to Bounmy’s claim that the
    drug evidence should have been suppressed because the deputy unreasonably
    prolonged the traffic stop in violation of the Fourth Amendment. We examine the
    deputy’s authority for the continued seizure of passenger Bounmy under the
    framework set out in Rodriguez v. United States, 
    135 S. Ct. 1609
    , 1614–16
    (2015) and Pardee, 872 N.W.2d at 391.
    Rodriguez holds “the tolerable duration of police inquiries in the traffic-stop
    context is determined by the seizure’s ‘mission’—to address the traffic violation
    that warranted the stop and attend to related safety concerns.” 
    135 S. Ct. at 1614
     (citation omitted). Beyond deciding whether to issue a citation, an officer
    6
    At oral argument, Bounmy’s counsel asserted the validity of pretextual stops under the
    Iowa Constitution is an open question. See State v. Harrison, 
    846 N.W.2d 362
    , 371
    (Iowa 2014) (Appel, J., dissenting) (“This issue of whether Whren is good law under the
    Iowa Constitution when a traffic stop is based on pretext, however, was not raised by
    Harrison and we do not address it today.”). Although our supreme court has not
    specifically considered whether to depart from Whren under article I, section 8 of our
    state constitution, the court has previously applied an objective approach to determine
    the validity of a traffic stop under the search-and-seizure clauses of both constitutions.
    See State v. Kreps, 
    650 N.W.2d 636
    , 640–41 (Iowa 2002) (stating the court “usually
    deem[s] the two provisions to be identical in scope, import, and purpose”).
    11
    may make “ordinary inquiries” incident to the traffic stop, including checking the
    driver’s license, determining whether the driver has outstanding warrants, and
    inspecting the car’s registration and proof of insurance. Id. at 1615. Unrelated
    investigations may be tolerated by the Fourth Amendment only if they do not
    lengthen the roadside detention. Id. at 1614. The Rodriguez court decided a
    dog sniff was not an ordinary inquiry related to the purpose of the traffic stop but,
    rather, was a measure aimed at detecting criminal wrongdoing outside the traffic
    stop’s mission. Id. at 1615. In considering the propriety of a dog sniff, the court
    opined an officer may not extend an otherwise completed traffic stop without
    independent reasonable suspicion. Id. at 1615–16.
    Applying Rodriguez, our supreme court found a roadside dog sniff
    impermissible when the state trooper “developed reasonable suspicion of other
    criminal activity—if at all—only by prolonging the initial stop beyond the time
    reasonably necessary to execute the traffic violation warnings.”       Pardee, 872
    N.W.2d at 391. In that case, the State argued the nervousness and “somewhat
    inconsistent travel plans” expressed by passenger Pardee and the car’s driver
    justified their continued detention by the trooper. Id. at 393. The Pardee majority
    rejected the State’s argument, concluding the trooper’s “blending” of questions
    about the traffic stop with unrelated drug-interdiction inquiries impermissibly
    prolonged the stop. Id. at 396–97.
    Bounmy compares her situation to Rodriguez and Pardee, contending
    Deputy Struve unlawfully extended the speeding stop by questioning her and the
    driver concerning where they had been earlier that night and where they were
    12
    going that morning—inquiries unrelated to the mission of the stop for speeding.
    On appeal, Bounmy asserts:
    It is abundantly clear that without questions that prolonged the stop
    past the point where he issued the warning citation Deputy Struve
    did not have grounds for reasonable suspicion to support a dog
    sniff, search of the car, or detention of the passengers. It was this
    detention that led to Ms. Bounmy’s arrest, because without the
    detention she would have been on her way.
    In response, the State asserts Deputy Struve had reasonable suspicion to
    engage the driver in conversation because the Plymouth County deputies
    received information the vehicle had “just left” a residence known to be involved
    in the use or distribution of controlled substances.7 If the information concerning
    the Accord’s association with the O’Brien County “drug house” did not amount to
    reasonable suspicion to initiate an investigatory stop, that same information—
    unenhanced by the deputies’ observations8 during his interaction with the
    7
    But the State does not argue Deputy Struve had independent reasonable suspicion of
    a drug-related offense to justify the traffic stop itself. Indeed, the record would not
    support such an argument. The deputy testified only that the suspect vehicle was
    coming from a “known drug house” that had been under surveillance and was travelling
    toward Sioux City. The deputy did not explain how long the house had been under
    surveillance and did not know the identity of the primary investigators. Other
    jurisdictions have determined that presence at a drug house—standing alone—is
    insufficient to support reasonable suspicion. See, e.g., United States v. Spears, 636
    Fed. App’x 893, 899 (5th Cir. 2016) (comparing visiting a house linked to drug activity to
    leaving a high-crime area); State v. Hopper, 
    666 S.E.2d 735
    , 737 (Ga. Ct. App. 2008)
    (finding stop not supported by reasonable suspicion where defendant “went into a
    suspected drug house in the middle of the afternoon, stayed for a few minutes, and then
    he left and drove away”); State v. Rutledge, 
    260 P.3d 532
    , 536 (Or. Ct. App. 2011)
    (finding officer had no reasonable suspicion to seize passenger who “had just left a
    motel that the police believed was involved in drug activity, was in a car with a person
    suspected of drug activity, and acted nervously”); see also Utah v. Strieff, 
    136 S. Ct. 2056
    , 2062 (2016) (assuming without deciding, because it was conceded by the State,
    officer lacked reasonable suspicion to initially stop defendant after he had left suspected
    drug house).
    8
    Our court recently held the observations by an officer trained in drug recognition that
    the driver’s pupils were dilated, indicating she was driving under the influence, gave him
    reasonable suspicion to expand a traffic stop. State v. Snow, No. 15-0929, 
    2016 WL 4801353
    , at *3 (Iowa Ct. App. Sept. 14, 2016).
    13
    driver—cannot form reasonable suspicion to prolong the traffic stop beyond the
    purpose of issuing the speed warning.          See Pardee, 872 N.W.2d at 393–95
    (declining to find trooper developed reasonable suspicion of criminal activity
    during roadside encounter with a passenger and driver based on nervousness,
    lived-in look of car, and odor of air freshener).
    In addition to the drug-house connection, the State cites the vagueness of
    the driver’s description of their itinerary, the inconsistencies between his
    description and Bounmy’s version of the trip, and the “unusual” demeanor of both
    the driver and Bounmy—as noted by Deputy Struve.               But the State also
    recognizes “in Pardee, the Iowa Supreme Court found similar factors to be
    insufficient to create reasonable suspicion.”       See id. at 395–97.   The State
    submits the Pardee majority “wrongly analyzed the reasonable suspicion issue”
    and lobbies for adoption of “the dissenting opinion in that case.” See id. at 397–
    99 (Cady, J., dissenting).
    Because the supreme court transferred this case to our court, the Pardee
    majority opinion is binding precedent. Under Pardee, the authority for seizing
    Bounmy (as well as the driver) ended “when tasks tied to the traffic infraction”
    were—or reasonably should have been—completed. See id. at 392 (majority
    opinion) (quoting Rodriguez, 
    135 S. Ct. at 1614
    ). The tasks tied to the speeding
    violation included those “ordinary inquiries” conducted by Deputy Struve,
    including running the driver’s license and registration and checking for warrants.
    By contrast, the deputy’s interviews with the driver and Bounmy to compare their
    travel plans were linked to the drug interdiction and not the speed warning. As
    was the case in Pardee, the deputy could have completed the process of warning
    14
    the driver about his speed without the separate investigative questioning. See id.
    at 396. By engaging in that questioning, Deputy Struve prolonged the traffic
    stop.9
    The next question under Pardee is whether individualized suspicion would
    have existed to “escort” Bounmy from the Accord before undertaking the dog
    sniff without the delay created by the deputy’s questioning of the driver and
    Bounmy that was unrelated to the speed warning. Id. at 396–97. The deputy’s
    suspicions were raised because the driver could not recollect exactly where he
    had been, who he had been visiting at the hospital, or his passenger’s last name.
    The deputy also felt the driver was “flustered” at times.10          In addition to the
    driver’s answers, the deputy was armed with the information from O’Brien County
    that a similar vehicle had been seen leaving a “known drug house.”
    The facts developed during the deputy’s routine questioning of the driver
    did not lead to reasonable suspicion that the driver or passengers were
    committing a drug-related offense.          Subjectively, Deputy Struve could not
    articulate particularized suspicion at that juncture in the traffic stop.         At the
    suppression hearing, the prosecutor asked the deputy how he assessed the
    situation after filling out the speed warning and deciding to question Bounmy:
    Q. So what was the . . . suspicion you had at that point?
    A. Suspicion I had when I talked to Ms. Bounmy?
    9
    It is unclear whether the deputy actually issued the warning after filling it out while
    speaking to the driver or if he waited until after speaking with Bounmy. Because the
    deputy should have concluded the traffic stop after writing the warning in his patrol car,
    we consider that point—before he interviewed Bounmy—to be the end of the traffic-
    related portion of the stop. See Rodriguez, 
    135 S. Ct. at 1614
    .
    10
    The driver’s nervousness is of limited significance. See Pardee, 872 N.W.2d at 394.
    15
    Q. When you go back to the vehicle to talk to Ms. Bounmy.
    A. This is just something I usually conduct. I try to have a
    conversation with everybody in the vehicle.
    We conclude the deputy’s basis for believing Bounmy and the driver were
    involved in other criminal activity before Bounmy was “escorted” toward the patrol
    car—viewed objectively—did not rise to the level of reasonable suspicion, which
    is probably why Deputy Struve told the driver they were free to leave even after
    posing questions unrelated to the mission of the stop. See id. at 394 (“On the
    whole, one can fairly say the grounds for suspecting Saccento and Pardee of
    other criminal activity before they were detained for the dog sniff were not that
    strong. That probably explains why Trooper Vander Weil said they were free to
    go.”).   Accordingly, we reach the same result as the majority did in Pardee.
    Because Deputy Struve lacked reasonable suspicion to prolong the traffic stop,
    we find the evidence he obtained as a result of Bounmy’s continued detention
    should have been suppressed.11
    D.       Did the driver consent to the deputy’s additional investigation?
    In addressing Bounmy’s motion to enlarge the suppression ruling, the
    district court decided the driver gave voluntary consent to additional questions
    from the deputy after being told he was free to go, justifying Bounmy’s continued
    11
    The district court decided in its original suppression ruling that the methamphetamine
    discarded on the ground by Bounmy was not found as the result of a search. But the
    State does not argue abandonment or plain view as grounds for upholding the ruling on
    appeal. Accordingly, we do not consider those warrant exceptions in our analysis. Even
    if they had been argued, we believe the constitutional violation occurred at the moment
    the deputy prolonged the traffic stop beyond its permissible length. Accordingly, the
    information and evidence the deputy obtained while Bounmy was illegally detained is
    inadmissible. See Pardee, 872 N.W.2d at 397 (finding information obtained after the
    permissible end of the traffic stop could not be used to support reasonable suspicion); cf.
    State v. McGrane, 
    733 N.W.2d 671
    , 680 (Iowa 2007) (“For the plain view exception to
    apply, police must be rightfully in the place that allows them to make the observation.”
    (citation omitted)).
    16
    detention.   The State bears the burden of showing consent was freely and
    voluntarily given under the totality of circumstances.         See Schneckloth v.
    Bustamonte, 
    412 U.S. 218
    , 222 (1973); see also State v. Lane, 
    726 N.W.2d at 378
     (describing two-part test for determining validity of consent: voluntariness
    and lack of exploitation of the prior illegality under the fruit-of-the-poisonous-tree
    doctrine).   A traffic stop on a public road is an “inherently coercive” setting,
    making it more “likely that a citizen would not feel free to decline to give consent.”
    See State v. Pals, 
    805 N.W.2d 767
    , 783 (Iowa 2011).
    The interplay between impermissibly prolonging a traffic stop and seeking
    consent to conduct further investigation (either by additional interrogation or a
    dog sniff) was not fully explored in Rodriguez or Pardee. In Rodriguez, the driver
    refused consent for the dog sniff at issue. 
    135 S. Ct. at 1613
    . In Pardee, the
    trooper told the driver he was free to go, and then asked if he would consent to
    answering more questions, which the driver did. 872 N.W.2d at 388. But the
    driver in Pardee did not agree to wait for the narcotics dog because “he wanted
    to get going.” Id. The trooper then detained the car’s occupants and conducted
    the dog sniff without the driver’s consent. Id. Despite the driver’s consent to
    answer more questions, the Pardee majority found the trooper could not rely on
    those answers, or information obtained earlier during the unnecessary expansion
    of the stop, to establish reasonable suspicion for the dog sniff. Id. at 397.
    On appeal, Bounmy argues her continued detention that led to the
    discovery of the drugs was not supported by valid consent. Bounmy points to
    language and cultural barriers preventing the State from meeting its burden to
    show the driver voluntarily agreed to answer questions from the deputy not
    17
    related to the traffic stop. Bounmy also asserts Deputy Struve admitted he did
    not receive permission to conduct the dog sniff.
    The State contends the record does not support Bounmey’s assertion that
    limited English skills or cultural misperceptions by Bounmy or the driver
    prohibited a finding of consent.          The State argues the totality of the
    circumstances show the deputy’s encounter with the driver was not coercive. 12
    We need not settle the parties’ debate concerning the voluntariness of the
    driver’s consent to additional questioning. When the deputy told the driver he
    was free to go and then asked permission to make more inquiries, the stop had
    already been impermissibly prolonged by the deputy’s quizzing of both the driver
    and Bounmy on the topic of their travel plans—a line of questioning unrelated to
    issuing the speed warning. The driver and Bounmy had already been subjected
    to illegal detention in violation of the Fourth Amendment.
    Consequently, any consent given by the driver to extend the length of the
    traffic stop was tainted by the prior illegal detention. See Lane, 
    726 N.W.2d at 378
     (clarifying that evidence obtained by purported consent should be held
    admissible only if it is determined that the consent was both voluntary and not an
    exploitation of the prior illegality).   Under Lane, we do not treat the driver’s
    consent as an alternative means by which the police may obtain evidence but,
    rather, the consent is treated as evidence sought to be excluded. 
    Id. at 381
    .
    Here, the driver’s consent to answer additional questions was obtained by
    exploiting the illegal detention immediately preceding Deputy’s Struve’s request.
    12
    The State did not argue in the district court or in the appellee’s brief that Bounmy
    lacked standing to challenge the validity of the driver’s consent.
    18
    See 
    id. at 383
     (applying three main factors in exploitation analysis: temporal
    proximity, intervening circumstances, and purpose of official misconduct); see
    also Pals, 805 N.W.2d at 784 (finding no break between illegal action and
    consent to search vehicle). Allowing the deputy to use the driver’s consent to
    justify “escorting” Bounmy to the place where the drugs were discovered would
    ratify the deputy’s prolonging of the traffic stop without reasonable suspicion to
    do so. Accordingly, we reject the district court’s reliance on the driver’s consent
    in denying the motion to suppress.
    Because the deputy did not have reasonable suspicion to prolong the
    traffic stop, all evidence flowing from the stop is inadmissible. We reverse the
    suppression ruling and remand for further proceedings consistent with this
    opinion.
    REVERSED AND REMANDED.