¶ 1. Defendant Asim Betts was charged in June 2010 with felony possession of crack cocaine under 18 V.S.A. § 4231(a)(2) after the vehicle in which he was a passenger was stopped and he was transported to the police barracks. After the trial court denied a motion to suppress evidence and to dismiss the charges, defendant entered into a conditional plea agreement, reserving the right to appeal the trial court’s suppression decision. Defendant argues that all evidence should have been suppressed under the Fourth Amendment to the United States Constitution and Article 11 of the Vermont Constitution because his consent to be taken to the police barracks for a strip search was invalid. We conclude that defendant’s consent was obtained only in response to the threat of an unlawful warrantless arrest under both the Fourth Amendment and Article 11 and, therefore, reverse.
¶ 2. The facts may be summarized as follows. 1 On June 7, 2010, sometime after 10:16 a.m., a state trooper spoke with a confidential informant who said he had seen “White Steve,” whom the trooper knew from previous investigations to be Steven McCauley, and an unknown black male “in possession of a large amount of crack cocaine.” It was unclear how recently the informant had seen the men in possession of the drugs: According to the trooper’s affidavit, the informant had seen the drugs at some point during the preceding twenty-four hours; the trooper later testified that the informant had seen the drugs more recently than that, some five hours before the stop. According to the trooper’s testimony, the informant, whose identity was never revealed, “advised that. . . White Steve was driving around in a white Ford *216 Explorer, and had an unknown African-American male subject in the vehicle with him, and that individual had a significant amount of crack cocaine on his person.” The trooper testified that the informant, who had previously provided information that led to arrests and charges, did not provide any additional details regarding the quantity, packaging, or location of the drugs he purported to have seen. 2
¶ 3. At about 11:30 a.m., while driving by on a public highway, the trooper spotted a white Ford Explorer at the location indicated by the informant and ran a license-plate check to verify it was McCauley’s sport-utility vehicle. In doing so, the trooper learned that McCauley’s license was suspended. The trooper did not stop the vehicle at that time but instead kept a “loose tail” for about two hours and forty-five minutes before pulling it over. The trooper confirmed that, during the lengthy period of time he observed the vehicle, he saw nothing that offered indicia of drug-related activity.
¶ 4. At the stop, the trooper first approached McCauley, who was driving; defendant occupied the passenger seat. The conversation was not recorded because the trooper was not wearing a functioning microphone. The trooper testified that he told McCauley that he was under suspension, did not have a front license plate, and that the trooper had received information about crack in the car. Several minutes after the initial stop, another officer arrived. From what can be discerned from the dashboard camera mounted in the trooper’s cruiser, the other officer walked toward the Explorer’s passenger side. Meanwhile, McCauley got out of the vehicle and continued to speak with the trooper. Both appeared from the cruiser video to be standing within earshot of the Explorer, where defendant remained seated, although, again the content of the conversation was not recorded.
¶ 5. Describing his interaction with McCauley, the trooper testified during the suppression hearing: “I explained to him the information that I had, and that I would be asking for consent [to search], and if not I was prepared to seize their persons and the vehicle to apply for a warrant.” In response to questioning, the trooper said he told the men that “they both would be seized, as *217 would the vehicle.” The trooper in his testimony agreed that the men would be handcuffed while the trooper made contact with a judge and waited for the judge to review the warrant application. The trooper said: “I didn’t explain it all in detail and that depth to them, but I told them that they would be seized, as would the vehicle, go to the barracks, and apply for a warrant.”
¶ 6. At some point during the conversation, McCauley told the trooper that he “was crazy, and that there was no drugs in the car or on their person” and agreed then to consent to a car and body search, according to the trooper’s testimony. The trooper left McCauley with another officer to fill out a consent-to-search form and spoke with defendant, who remained in the Explorer. In his testimony during the first day of the suppression hearing, the trooper described the conversation as follows:
[Trooper]: I told him if the consent was denied, that these were the options that we had, and I was asking for a consent, and I explained to him the information that I had received, and that I had validated the information, that I would be seizing their persons and the vehicle, yes.
[Question]: And that information was conveyed to Mr. Betts before he gave the verbal consent at the car to go ahead and search his person.
[Trooper]: Yes.
¶ 7. The suppression hearing recessed, and after a lengthy hiatus, began anew some weeks later. The trooper then testified that he merely explained the options to Betts after he had already given consent, stating “I don’t recall the search warrant. I did explain to him, like I said, the information obtained from the informant, and he immediately said that he was not in possession, there was no crack in the vehicle, and I could search his person.”
¶ 8. Defendant similarly described the critical portions of his initial encounter with the trooper, testifying that the trooper told him “if you don’t consent, then we’ll put you in cuffs, and we’ll bring you to the barracks, and then we’ll get a warrant.” Regardless of the specific content of their conversation, the trial court in its decision found that, at a minimum, the trooper “explained that if consent was not given, he would seize them and would be applying for a search warrant.”
*218 ¶ 9. The trooper brought defendant back to his cruiser to fill out paperwork to consent to a body search. Before entering the cruiser, defendant agreed to empty his pockets. The pocket-dump revealed nothing drug related, and defendant was allowed to place everything back in his pants. Once inside the cruiser, where the recorder was operating, the trooper explained what defendant would be consenting to. In particular, the trooper told defendant that they would go to the barracks because a strip search could not be conducted in the public parking lot and that defendant would be handcuffed during the trip to preserve any evidence. The trooper read the consent form to defendant and noted that although he believed he had probable cause, a judge would need to approve a warrant if defendant did not consent. The trooper handed defendant the consent form and asked him to sign, which he did.
¶ 10. The trooper placed defendant in handcuffs, drove him to the barracks, and left defendant inside before returning to his cruiser to retrieve the dash video. As the trooper approached his cruiser, he saw what later proved to be crack cocaine on the ground beside the passenger door. The trooper went back inside and read defendant his Miranda warning. Defendant waived his rights by signing a form, and then acknowledged that the crack was his and that he had come from Connecticut to purchase it.
¶ 11. Defendant moved to suppress the evidence and dismiss the charges, alleging that his consent was not voluntary. The trial court denied the motions after determining that the alleged motor-vehicle violations justified the initial stop and that defendant voluntarily consented to a search, which necessitated a trip to the police station. The trial court concluded that “the observed motor vehicle code violation provided an objectively reasonable basis for the initial stop” and that “the immediate request for a consent to search did not impermissibly expand the duration of the stop.” In analyzing the circumstances surrounding defendant’s purported consent, the trial court focused exclusively on the recorded interaction between defendant and the trooper inside the patrol car, at which time the trooper “asserted his opinion that he would be able to obtain a warrant” but “qualified that statement by indicating that a judge would have to agree with him that probable cause existed.” The court omitted any discussion of its own finding that the officer had threatened to “seize” defendant pending a warrant application.
*219 ¶ 12. Defendant appeals, arguing that the trial court .erred in failing to suppress the evidence because defendant’s transportation to the police barracks was unsupported by either a valid consent to the search that necessitated the trip or by probable cause. We reverse.
I.
¶ 13. Absent voluntary consent, defendant’s transportation to the police barracks in handcuffs for a full-body strip search would undoubtedly constitute an arrest, rather than a mere investigative detention. See
State v. Pitts,
¶ 14. “[A] trial court’s decision on the question of the voluntariness of a consent to search, and thus the ultimate constitutional validity of the search, must be reviewed independently by this Court on appeal.”
State v. Weisler,
¶ 15. We have previously held that consent obtained during an illegal detention is invalid, although this appears to be the first time we have addressed the voluntariness of consent given when
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a police officer threatens a detention amounting to an arrest.
4
See
Pitts,
¶ 16. In
Pitts,
we concluded that police lacked reasonable suspicion to temporarily detain and pointedly question a man about drugs, holding that the defendant “would have concluded that he was the subject of a focused police investigation into criminal activity and was not free to disregard the officers’ questions and requests.”
While the record reveals neither physical restraint nor blatantly aggressive or intimidating language, these circumstances — including the fact that the suspect was obviously followed for a substantial distance, that his taxi was searched, and that he was successively questioned about weapons and drugs — are precisely the kind which courts have characterized as a particularized inquiry into criminal activity which the average person would not have felt free to disregard or terminate.
Id. ¶ 16. In arriving at that conclusion, we acknowledged the criticism engendered by many U.S. Supreme Court decisions that seemingly overestimate the average person’s capacity to decline police requests or end police questioning. Id. ¶ 17.
¶ 17. It is also well established that consent is not voluntary when it is a mere submission to a claim of lawful authority. See
Bumper v. North Carolina,
It is enough . . . that the police incorrectly assert that they have a right to make a warrantless search under the then existing circumstances, or circumstances they could cause to occur; that they claim that absent such consent they will detain defendant while a non-search alternative is used to acquire the information sought; ... or that the police have misrepresented the existence of certain facts . . . which, if they actually existed, would allow the police to make a warrantless search.
Id.
at 76-77 (citing
United States v. Morgan,
¶ 18. For similar reasons, consent for a search is not voluntary when obtained in response to the threat of an unlawful detention. See, e.g.,
United States v. Jefferson,
We also reject the government’s contention that [defendant] consented to the search. Although [defendant] *222 told [the officer] to “go ahead” and search his luggage, he did so only after he was threatened with illegal detention. . . .
In this case, [the defendant] was not simply asked if he would consent to a search; he was hauled off the street and into a private office and told that if he did not consent to a search he would be held until [the officer] obtained a search warrant. In view of the fact that [the defendant] was threatened with being detained, although [the officer] had no right to hold him, his consent cannot be considered voluntary. It was obtained under duress; the alleged consent does not vitiate the illegality of the arrest.
Id. at 858.
¶ 19. We are faced with a similar situation here. First, defendant agreed to a search only after the trooper explicitly told him that both he and McCauley would be “seized” and taken to the police barracks to await a warrant. Second, the trooper, in fact, lacked the authority to transport defendant to the barracks against his will because neither the informant’s tip nor the trooper’s lengthy surveillance or later interaction with defendant provided probable cause.
5
Probable cause for a “warrantless arrest exists when the facts and circumstances known to an officer are sufficient to lead a reasonable person to believe that a crime was committed and that the suspect committed it.”
State v. Arrington,
¶ 20. This Court applies a two-prong test codified by Vermont Rule of Criminal Procedure 41 to evaluate whether probable cause for a warrant exists based on the hearsay testimony of a confidential informant not named by the police. See
Arrington,
¶ 21. Here, assuming the informant personally saw White Steve and “an unknown black male in possession of a large amount of crack cocaine,” the first prong might arguably be satisfied — at least with respect to White Steve and this “unknown black male” — based upon the informant’s direct observation of an individual who was known to the officer and another described only very broadly as a male who was black. 7
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¶ 22. The second prong addressing informants’ inherent credibility or the reliability of their information on a given occasion would not, however, have been satisfied. A reviewing court would not have been able to independently evaluate the informant’s inherent credibility on the basis of the information contained in the affidavit or the trooper’s testimony. See
McManis,
¶ 23. Here, the trooper’s affidavit indicated that the confidential informant had “provided . . . information in the past that has led to the arrest of at least three separate individuals for various narcotics offenses.” While a closer call than some of our other cases to weigh the credibility of an unnamed informant, the context falls short of that required to permit an independent analysis of the informant’s credibility. Past information leading to other drug-related arrests is certainly a factor that weighs in favor of concluding an informant is credible. See
Robinson,
¶ 24. The trooper’s affidavit here contains no indication as to the actual nature of the informant’s cooperation or information in the past, how the information “led” to the alleged arrests, or the final outcome of any of the cases in which he or she was involved. See
Commonwealth v. Santana,
¶ 25. Nor can we conclude that the information provided was necessarily reliable on this particular occasion. There is no indication that the informant made statements against his or her penal interest, and, thus, the State would need to establish that the “information was corroborated by police to the point where it would be reasonable for them to rely on it as accurate.”
McManis,
¶ 26. In
Arrington,
we held that probable cause existed for a warrantless arrest predicated on information provided by an informant whose tip was deemed reliable on the basis of several important factors notably absent in this case: First, the informant in
Arrington
had marked money and drug paraphernalia that implicated her in the retail drug trade about which she purported to provide information.
¶ 27. The informant’s information in this case falls far short of that standard. As an initial matter, the informant’s information consisted largely of the sort of “mere innocent details” that we
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have previously held insufficient by themselves to confirm allegations óf criminal conduct even under the more forgiving standard of reasonable suspicion. See
Robinson,
¶ 28. Here, the State suggests that the informant’s tip accurately predicted that defendant would be in the company of White Steve, who was known to police from other investigations, and that the car they occupied would be at a particular location. According to the State, such information would not be available to the general public observer and therefore would be sufficient to justify at least the lower standard of reasonable suspicion. We find this contention without merit. As the trooper himself acknowledged, he first observed White Steve’s car from a public highway after speaking with the informant. The trooper’s verification of the make, model, and publicly observable location of McCauley’s car, which would have been evident to anyone passing by, concerns precisely the type of innocent details we have previously concluded were insufficient to corroborate the reliability of an informant’s tip or, indeed, to generate probable cause. See
McManis,
¶ 29. Moreover the informant’s tip in this case offered no details that directly related to defendant. Rather, the tip described an “unknown black male,” who, according to the trooper’s affidavit, had been in the company of White Steve and a large amount of cocaine within twenty-four hours of the informant’s conversation with the trooper; the trooper later narrowed that period to several hours before the call. Regardless of the time that transpired, nothing more than gender and race suggested that the person in McCauley’s car at the time of the stop was the same one whom the informant purported to have seen earlier in possession of drugs. This is in marked contrast to the situation in
Arrington,
in which the informant personally identified the suspect while accompanying the police,
¶ 30. We find similarly unpersuasive in this case the State’s correct observation that law enforcement officers may at times rely on “personal knowledge of [a] defendant’s prior criminal activity” to assess the reliability of an informant’s tip.
State v. Lamb,
¶ 31. The State appears to contend that police may-arrest suspects without probable cause in order to preserve possible evidence while they apply for search warrants that might enable them to discover the very evidence that would provide probable cause. Given the facts of this case, the law precludes this rather circular assertion of authority. Under the Vermont and Federal Constitutions, a person cannot be unlawfully arrested to be “at the disposal of the authorities while a case is discovered against him.”
In re Davis,
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¶ 32. Nor do we find compelling the State’s attempt to employ here narrow exceptions to the search warrant requirement as a basis for a person’s arrest — or the threat of one — without probable cause. Among other salient distinctions, these exceptions themselves require probable cause as a necessary predicate in addition to the claimed exigent circumstances. See, e.g.,
State v. Girouard,
II.
¶ 33. Having determined that defendant’s consent to a strip search was not voluntary and was, therefore, invalid, we conclude that the trial court erred in declining to suppress the evidence obtained from the ground outside the station. “Evidence obtained in violation of the Vermont Constitution, or as a result of a violation, cannot be admitted at trial as a matter of state law.”
State v. Oakes,
Reversed; defendant’s motion to suppress and dismiss is granted.
Notes
We draw the facts from the trial court’s findings, testimony, and the dash-mounted-cruiser-camera video because we review a decision regarding the voluntariness of consent independently based upon the totality of the circumstances.
State v. Weisler,
The trooper could not confirm whether the informant’s tips had led to convictions, a consideration that some courts have found relevant in assessing credibility. Because of the disposition of this case on other grounds, we decline to address the effect, if any, this might have on a credibility determination.
Transportation to a police station without consent is no less an arrest simply because it is necessitated by the police’s purported desire to protect a suspect’s dignity and privacy by conducting a strip search away from the public eye.
We assume without deciding that defendant’s initial detention, arguably a mere byproduct of the physical impediment to his departure posed by his presence as a passenger in a vehicle stopped for illegal operation, was not illegal.
The motor-vehicle infraction committed by the driver cannot be relied upon to support probable cause to arrest or search defendant, who was a passenger. An officer’s knowledge that someone is operating a vehicle with a suspended license justifies stopping the vehicle, but only for as long as necessary to “effectuate the purpose of the stop.”
State v. Cunningham,
The test is based on two United States Supreme Court cases,
Aguilar v. Texas,
The affidavit is not clear on this point because it omits a word. The affidavit reads “Cl advised that within the last twenty four hours, s/he had [missing past participle] Steve Mcauley and an unknown black male.” From the trooper’s testimony, however, it appears that the informant claimed to have seen the drugs.
