We are asked to decide whether law enforcement officers may remain in a home absent probable cause when consent to enter is granted but later revoked. We also consider whether the Fourth Amendment permits detention of an individual for the duration of an investigation based on a police hunch that the individual may provide aid to a suspect if allowed to leave police custody. Our jurisdiction arises under 28 U.S.C. § 1291. We reverse and remand for the district court to enter judgment as a matter of law in favor of Danny Manzanares on both of his substantive claims and hold a new trial on damages.
I
A
In the early morning hours of March 16, 2002, Officer Sean Higdon of the Albuquerque Police Department (“APD”) rеceived a call from an Albuquerque Police dispatcher regarding an alleged rape. 1 Another APD Officer, Jason Morales, had spoken with a Danny Manzanares earlier in the night, and Morales had relayed his belief that Manzanares could help police contact an alleged suspect in the rape, later determined to be Miguel “Rick” Maestas. Officers Higdon and David Saladin went to the Manzanares home to investigate Morales’ suspicion.
Manzanares himself was not suspected of any crime at that point.
Higdon and Saladin arrived at the Manzanares home at approximately 5:50 a.m. 2 They found Manzanares to be polite and cooperative. On answering thе door, he promptly invited the officers inside. Manzanares told the officers that he and the suspect, Maestas, worked together and proceeded to provide police the name of the suspect’s supervisor. Manzanares confirmed descriptions of the suspect’s vehicle and home but told the officers that he did not know the suspect’s last name or address. Eventually, Manzanares decided to end the interview and asked the officers to leave his home. When the officers refused, Manzanares became agitated. In response, Higdon handcuffed him. At the later trial, Higdon testified that he did so for safety reasons and out of concern that Manzanares might warn the suspect if released. Higdon could not precisely recall how long Manzanares was handcuffed in his home but estimated that it was a matter of minutes.
Officer Higdon was also asked whether he had an articulable basis to believe Manzanares needed to be handcuffed. Higdon replied, “I was in somebody’s house. I don’t know anything about this person or what weapons he may have accessible to him in his own house.” He further explained, “I felt the need to put him in handcuffs, so I mean, I wouldn’t have just put him in handcuffs for no reason.” Hig *1141 don acknowledged that Manzanares was not suspected of a crime.
After learning that additional investigators were en route to the Manzanares home, Higdon asked Manzanares whether he would prefer to remain in his home until the investigators arrived or wait in the back of a police vehicle. Manzanares opted to remain in the home with the officers, and Higdon removed his handcuffs. Following Sergeant Christine Chester’s arrival on the scene, at approximately 8:00 a.m., Manzanares admitted that he knew the suspect’s name to be Miguel Maestas, and agreed to guide police to his home. He had at least twice previously denied knowing the suspect’s last name or address.
For his cooperation, Manzanares was repaid many times over. Higdon and Saladin handcuffed him again, locking him in the rear seat of their squad car. The officers, with Manzanares in tow, arrivеd at Maestas’ home at 9:11 a.m. 3 They left Manzanares handcuffed in the backseat and exited the vehicle. Higdon testified that he did so in the interest of safety and because Manzanares was trying to help his friend, Maestas. 4 When Maestas did not answer his door, some officers sought a warrant while others secured the perimeter.
Police remained outside Maestas’ home for several hours. All the while, Manzanares was handcuffed and locked in the backseat of the squad car. Police sought no further information from him, and Higdon explained that he continued to detain Manzanares only because he feared that Manzanares might impede the investigation if freed. When Maestas finally exited his hоuse and was taken into custody, Higdon returned Manzanares to his home— around 12:25 p.m. According to Higdon’s timeline, Manzanares was detained in handcuffs in the squad car for more than three hours. 5
B
Following this encounter, Manzanares brought suit against Higdon under 42 U.S.C. § 1988, asserting two claims based on violations of the Fourth Amendment and a third claim for punitive damages. At the conclusion of Manzanares’ case in chief, Higdon moved for judgment as a matter of law, see Fed.R.Civ.P. 50, arguing *1142 that his actions were objectively reasonable. The court took Higdon’s motion under advisement. On the conclusion of the presentation of his case, Higdon renewed his motion for judgment as a matter of law. Manzanares moved for judgment as a matter of law on all three of his claims. The district court again took the motions under advisement and submitted the case to the jury.
The jury returned a verdict in favor of Higdon on all claims. Manzanares then renewed his motion for judgment as a matter of law. Concluding that reasonable inferences could be drawn to support Higdon’s theory of the case and the jury verdict, the district court denied Manzanares’ motion. Because the jury’s verdict for Higdon was undisturbed, the district court denied Higdon’s motion as moot. After entry of judgment, Manzanares again renewed his motion for judgment as a matter of law and moved for a new trial, see Fed.R.Civ.P. 59(a), on the basis of his contention that the jury was erroneously instructed. Both motions were summarily denied. Manzanаres appeals.
II
Because a motion for judgment as a matter of law presents purely legal arguments, we review a district court’s disposition of such a motion de novo.
Herrera v. Lufkin Indus., Inc.,
A
We consider Manzanares’ contention that he is entitled to judgment as a matter of law on his claim that Higdon violated the Fourth Amendment by refusing to exit the Manzanares home. In doing so, we apply the traditional two-part qualified immunity framework, considering first the existence of a constitutional violation and next whether the law as to that violation was clearly established.
6
Weigel v. Broad,
Our analysis centers on the critical fact that the encounter at issue occurred in the Manzanares home. Although the Fourth Amendment guarantees “[t]he right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures,” its foremost concern is the home.
Georgia v. Randolph,
*1143
Groh,
Despite its fundamental nature, the warrant requirement for entry into a home has a few carefully established exceptions.
See Schneckloth v. Bustamonte,
There is no question that Higdon’s original entry into the Manzanares home was consensual. Nor can there be a legitimate dispute that consent was later withdrawn. Manzanares unequivocally asked Higdon and Saladin to leave. In Higdon’s words, “He didn’t want us there anymore.”
See Gates,
When Manzanares asked the officers to leave, the consensual encounter ended; Manzanares was “seized,” and Higdon’s continued presence was permitted only if it comported with the Fourth Amendment.
Gates,
Higdon advances two justifications for his continued detention of Manzanares: (1) investigative detention of Manzanares was supported by reasonable suspicion that he was obstructing an officer and (2) detention of Manzanares as a witnеss was permissible. We address each proffered justification.
*1144 1
“[Labeling an encounter in the home as either an investigatory stop or an arrest is meaningless because
Payton's
requirements apply to all [such] seizures.”
United States v. Reeves,
Before this court, Higdon argues that he reasonably suspected Manzanares was obstructing an officer. Although he argues under the incorrect standard, we consider his position under the proper standard as a possible alternative ground for affirmance. 7
“Probable cause is based on the totality of the circumstances, and requires reasonably trustworthy information that would lead a reasonable officer to believe that the person about to be [seized] has committed or is about to commit a crime.”
Cortez,
Considering the facts known to Officer Higdon, we conclude that he could not have reasonably believed that Manzanares had resisted, evaded, obstructed, or refused to obey an officer within the meaning of either of the relevant provisions of New Mexico law. See N.M. Stat. § 30-22-1 (resisting, evading, or obstructing an officer); Albuquerque, N.M., Revised Ordinances § 12-2-19(D) (resisting, obstructing, or refusing to obey an officer). At the time Manzanares asked him to leave, Higdon knew only that Manzanares was a coworker and friend of Maestas and that Manzanares and Maestas had socialized together earlier that night. Higdon testified that both he and Officer Morales believed Manzanares “knew more than he was willing to say,” but that conjecture was not anchored in any factual observation.
An officer in Higdon’s position would not reasonably believe that Manzanares was resisting or obstructing an officer under New Mexico law. New Mexico Statute § 30-22-l(D) provides that “resisting, evading or obstructing an officer” consists of “resisting or abusing any judge, magistrate or peace officer in the lawful discharge of his duties.” Albuquerque has a city ordinance that prohibits “resisting, obstructing or refusing to obey an officer,” with language similar to the state statute on “[[Interfering with, obstructing or op
*1145
posing any officer in the lawful discharge of his regulаr and affixed duties.” Albuquerque, N.M., Revised Ordinances § 12-2 — 19(0). Higdon’s sole basis for guessing that Manzanares was violating either provision was the pure speculation that Manzanares could have been more cooperative and shared more information.
8
An unsubstantiated hunch cannot constitute probable cause.
Cortez,
2
Higdon also claims that he could detain Manzanares as a witness to prevent him from alerting Maestas. Two distinct legal theories are entwined in this justification: (1) detention of a witness for information, see
Illinois v. Lidster,
Witness detentions are confined to the type of brief stops that “interfere[ ] only minimally with liberty.”
Id.
at 427,
*1146 As to Higdon’s protection-of-investigation rationale, we must consider whether Higdon had probable cause to believe that Manzanares was about to commit the crime of obstruction. As discussed above, Higdon’s only objective reasons for suspicion were that Manzanares and Maestas were Mends and coworkers who had spent time together earlier that evening. These facts fall well short of supplying probable cause.
Further, to the extent that Higdon’s argument can be read as seeking аn exception to the Fourth Amendment’s strictures on seizures in the home, we decline his invitation. We will not lower the drawbridge to invite police into a home without a warrant or an established substitute therefor whenever officers “feel” that a resident might impede an ongoing investigation. Such an exception would stand the Fourth Amendment on its head.
See Randolph,
We accordingly reject both of Higdon’s purported justifications for remaining in the Manzanares home. Given the absence of probable cause, Higdon was constitutionally compelled to leave the home when Manzanares withdrew consent. Thus, a reasonablе jury was compelled to find that Manzanares’ constitutional rights were violated when Higdon remained in his home without a warrant or valid exception to the warrant requirement after consent was revoked.
B
Having concluded that Higdon violated the Fourth Amendment by refusing to exit, we must determine whether his conduct was objectively reasonable in light of clearly established law at the time it occurred.
10
Weigel,
It has been clear for nearly thirty years that a warrantless entry into a home is presumptively unreasonable.
Payton,
Any reasonable officer would also have known that probable cause was indispensable to justify remaining in the Manzanares home. The Court made clear in
Payton
that, at a bare minimum, all in-home seizures require the existence of probable cause.
Reeves,
That Higdon could not remain in a home to detain a witness who might impede an investigation if freed was similarly clearly established. Higdon’s argument that
Walker v. City of Orem,
Our present case differs in several fundamental respects. First, Manzanares was not a “witness” in any traditional sense. In contrast to the officers in
Walker,
Higdon had no reason to believe that Manzanares observed the alleged crime. Second, while the witnesses in
Walker
were in their home, the officers detaining them were not.
Id.
at 1145. Higdon, however, remained in the Manzanares home. This distinction places Higdon on entirely different footing than the officers in
Walker
and squarely within a clearly established line of cases.
See Payton,
These cases unanimously require probable cause (as well as a warrant or exigent circumstances) to seize an individual in his home.
See Groh,
Ill
A
We proceed to consider whether Higdon unlawfully detained Manzanares in the squad car after Manzanares agreed to help APD officers locate Maestas’ home. Higdon acknowledges that holding Manzanares in the car constituted a seizure. Because this detention occurred outside the home, we must decide whether this seizure constituted an arrest or an investigative detention in order to ascertain Fourth Amendment requirements.
11
See United
*1148
States v. Brown,
a seizure within the meaning of the Fourth Amendment but, unlike an arrest, it need not be supported by probable cause.... An officer can stop and briefly detain a person for investigative purposes if the officer has a reasonable suspicion supported by articulable facts that criminal activity may be afoot, even if the officer lacks probable cause.
Cortez,
“The allowable scope of an investigative detention cannot be determined by reference to a bright line rule.”
United States v. Neff,
As the Supreme Court has noted, it has never held a detention of 90 minutes or longer to be anything short of an arrest.
United States v. Place,
Viewing the facts in Higdon’s favоr, i.e., minimizing the length of the detention, Manzanares was held in the back of the squad car for more than three hours — more than twice as long as the reference point established by the Supreme Court in Place. The duration of detention alone provides strong evidence that Manzanares was under arrest rather *1149 than merely subject to an investigative detention.
Moreover, Manzanares was handcuffed and locked in a confined space for the entirety of the detention. The record does not provide a particularized reason to suspect he was dangerous so as to justify such forceful measures.
See Neff,
Higdon claims that the detention did not become an arrest because “actions were being taken” for the duration of Manzanares’ detention, apparently referring to the fact that Maestas had yet to be apprehended. Enmeshed in this argument is the notion that Manzanares might have alerted Maestas to the police investigation if freed. Considering the purpose of a detention is appropriate in determining whether it was an arrest.
Sharpe,
In weighing these factors, we begin by noting that “police have less authority to detain those who have witnessed a crime for investigatory purposes than to detain criminal suspects.”
Walker,
Once Manzanares led Higdon to Maestas’ residence, the purpose of the detention was satisfied. At least under the facts of this case, the mere possibility that Manzanares might have tipped off Maestas cannot transform a forceful, three-hour detention from an arrest into something less. A contrary holding would marginalize established precedent holding that investigative and witness detentions are brief and carefully limited in scoрe.
See Lidster,
Higdon does not identify any bаsis for this arrest other than the factors he advanced in support of Manzanares’ in-home detention, and we discern none in the record. As explained above, these fac
*1150
tors do not establish probable cause,
see
Part II.A.1,
supra,
as required for an arrest,
Michigan v. Summers,
B
Lastly, we consider whether Manzanares’ squad car detention violated clearly established law. Whether an investigative detention has evolved into an arrest is always a case-specific inquiry, but it has been clear for some time that the use of hаndcuffs generally converts a detention into an arrest.
See Melendez-Garcia,
Based on these cases, any reasonable officer would understand that it is unconstitutional to handcuff someone absent probable cause or an articulable basis to suspect a threat to officer safety combined with reasonable suspicion. Moreover, Higdon’s suggestion that an ongoing investigation provides blanket license for investigative detention is a novel one wholly without support in our case law. Accordingly, this theory cannot call into question our clearly-established law on point.
See Groh,
As with Manzanares’ in-home detention, Higdon argues that
Walker
is dispositive of the clearly established inquiry. We are unpersuaded. He is correct that
Walker
reiterates the absence of a bright-line delineation between arrest and mere detention.
Moreover, we cannot accept Higdon’s broader proposition that the existence of a grey area between arrests and investigative detentions means that no reasonable officer can ever understand that he has arrested a suspect. Although the lack of bright-line rule may merit somewhat greater leeway in determining whether the law on a particular point is clearly established, Higdon’s argument ignores that precedent creates meaningful standards even when it does not draw bright lines.
See, e.g., Buck,
*1151 IV
For the foregoing reasons, we REVERSE the judgment below and REMAND with instructions that the district court enter judgment as a matter of law in favor of Manzanares on his Fourth Amendment claims and hold a new trial on damages.
Notes
. Because we are reviewing the denial of a motion for judgment as a matter of law, "[w]e consider the evidence, and any inferences drawn therefrom, in favor of the non-moving party,” in this case, Higdon.
Brown v. Gray,
. At trial, the parties hotly disputed the timing of a number of events, including the time at which the officers first arrived at the Manzanares home. Manzanares testified that the officers arrived much earlier than 5:50 a.m.— the time Higdon provided after his recollection was refreshed by a police report. Because we must take the facts in the light most favorable to the jury’s verdict,
see Brown,
. By Manzanares’ account, he was taken from his home to Maestas’ home at 5:00 a.m.
. Thе only basis we discern for asserting that Manzanares would help Maestas is Manzanares’ initial refusal to share detail with police. That Higdon continued to fear that Manzanares would help Maestas seems odd, given that by this time Manzanares had provided the requested information and led police to Maestas' home. Nonetheless, because of the procedural posture of the case, we do not question the credibility of his explanation.
Brown,
. Manzanares testified that the conditions in the car were oppressive, with the officers intentionally blasting the heat and music while he was alone in the car. According to Manzanares, when he asked to be taken home, Higdon yellеd in response, "Your rapist friend is not cooperating. You’re going to have to wait with us.” Each time the officers returned to the car after that, Manzanares knocked on the plexiglass barrier between the front and back seats to try to get their attention. At one point, Saladin opened the back door, and Mazanares dry heaved. Saladin apologized but refused to allow Manzanares to leave and again closed the door. Manzanares testified that he suffered headaches, stomachaches, dry heaves, and dehydration.
After police made contact with Maestas, Higdon and Saladin returned to the vehicle but did not release Manzanares until after they hаd completed writing their reports. Throughout this time, Manzanares remained handcuffed in the back seat of the car. By Manazanares' timeline, he was detained in the car for approximately seven hours, from 5 a.m. to 12 p.m.
. The Supreme Court made this “order of battle” discretionary in
Pearson v. Callahan,
- U.S. -,
. Higdon made this argument below in passing, asserting that he had "reasonable suspicion and probable cause to believe [Manzanares] was committing or had committed the offense of obstructing an officer under state statute or city ordinance.” (Emphasis added).
. When asked on cross-examination whethеr he "w[as] obstructing the police investigation,” Manzanares answered, “I guess in a small way.” On redirect examination, however, Manzanares said that he did not know the legal definition of obstruction, testified that he never physically impeded the investigation, and said that he only "obstructed” the investigation by not disclosing information. Higdon acknowledged on cross that Manzanares did not physically resist, fight, or spit on an officer.
. At trial, Higdon obtained jury instructions regarding accessory in the commission of a crime,
see
N.M. Stat. § 30-1-13, and aiding a felon to avoid arrest,
see
N.M. Stat. § 30-22-4. Higdon lacked probable cause for these crimes as well. New Mexico's accessory statute requires that Manzanares “helped, encouraged, or caused the [sexual assault] tо be committed” and that "[Manzanares] intended that the [sexual assault] be committed.”
State
v.
Johnson,
Similarly, aiding a felon requires that Manzanares "knew that the alleged felon had committed a felony and ... had the intent that the alleged felon escape or avoid arrest, trial, conviction or punishment.”
State v. Gardner,
. Although the district court did not reach this issue, it is a purely legal determination that was argued below and that we may decide on the record.
See Gomes v. Wood,
. Higdon does not argue that because Manzanares agreed to show police the location of the Maestas home, Manzanares’ presence in
*1148
the squad car was consensual at the outset. Presumably, this is because such agreement may well have been the product of involuntary consent deriving from the unconstitutional seizure in the Manzanares home.
See United States v. Chavez,
. Cases such as
Illinois v. McArthur,
. Because we reverse the judgment below and remand for entry of judgment as a matter *1151 of law. on both claims, a new .trial will be held on damages but not on liability. Thus, we need not determine whether the jury was properly instructed as to liability.
