Edwin Martinez, Jr. appeals his conviction, following a jury verdict, and sentence for bank robbery in violation of 18 U.S.C. sections 2113(a) and (d). We affirm.
I. BACKGROUND
The Liberty Savings Bank in St. Cloud, Minnesota was robbed on July 23, 2004, at approximately 9:20 a.m. The robber entered the bank, approached a teller, placed a gun on the counter in front of her, and told her this was a robbery. The teller gave the man all the money she had in her drawer. The man pulled his sleeves down over his hands, wiped down the counter with the sleeves, folded the bills in half, and put the wad of bills in one of his pockets. He then slowly backed away, told the teller not to say anything, and left through the front door.
The bank contacted the police, and the teller described the robber to them as a black male in his early to mid-twenties, between 5'7" and 5'9" tall, wearing a gray hooded sweatshirt and blue jeans. St. Cloud police officers Michael Lewandow-ski, Jeff Atkinson, and David Missell responded. Atkinson was told to check the area surrounding the bank, and so went to a recreational area known as Lake George, about a half-mile from the bank. Once there, he noticed a black male matching the height description, wearing a white tank top and blue pants, walking southbound very fast through the park. Atkinson slowed his car to observe the man, Martinez, talking on his cell phone while walking. Martinez looked up at Atkinson and quickly looked down again. Atkinson noticed that Martinez’s face was shiny and assumed he was sweaty.
Atkinson exited his car and told Martinez that he needed to talk with him. Martinez cooperated, putting his hands behind his head. Atkinson walked up to Martinez, took the cell phone from his hand and laid it on the ground, grabbed his hands, and told him that he was being detained because he matched the description of a bank robber. Atkinson then performed a pat-down to check for weapons since the robber had used a gun. At the same time Missell, who had responded to assist Atkinson, asked Martinez if he had any weapons on him. Martinez responded that he possessed only a large sum of money. Atkinson felt what he knew to be a wad of cash in Martinez’s pocket. At that point, Atkinson placed handcuffs on Martinez, and told him he would be further detained. Atkinson pulled the wad of cash partly out of the pocket to confirm it was money, and then pushed it back into the pocket. Missell then asked Martinez where he got the cash. Martinez responded that he had just been paid from his place of work. When Missell expressed disbelief, Martinez changed his story to say he saw a man running in the park, and that he found the money. Atkinson then placed Martinez in the back of the police car, read him his Miranda rights, and took him to the bank for a show-up identification.
Once at the bank, Atkinson placed Martinez on the sidewalk in front of the bank toward the windows, hands behind his back and cuffed. The teller was inside the bank. Upon seeing Martinez, she became physically shaken, and identified Martinez as the robber. He was then arrested and taken to jail.
Martinez was indicted on one count of bank robbery, in violation of 18 U.S.C. sections 2113(a) and (d). Before trial, Martinez asked the magistrate judge to suppress (1) statements made in response *907to questioning from Missell about the wad of cash in his pocket because he was not given his Miranda warnings at that time, (2) the cash seized from his person after arrest because the officers lacked reasonable suspicion to conduct the Terry stop in the first place, and (3) the teller’s identification of him at the bank as impermissibly suggestive. The magistrate judge denied all three requests in the report and recommendation, which was adopted by the district court.1 Martinez was convicted and sentenced to 150 months imprisonment.
II. DISCUSSION
A. Extent of Terry Stop
Martinez first argues that his statements to the officers in the park, the money seized from his person, and his participation in the show-up identification should be suppressed as “fruit of the poisonous tree” because once he was handcuffed and placed in the police car, the Terry stop turned into an arrest, for which officers had no probable cause. The parties both focus on whether the cuffing of Martinez constituted an arrest. We conclude that the cuffing did not convert the Terry stop into an arrest, and even if it did, the officers had probable cause to effectuate the arrest, based on the wad of cash discovered during the Terry frisk.
“An investigative detention may turn into an arrest if it ‘lasts for an unreasonably long time or if officers use unreasonable force.’ ” United States v. Maltais, 403 F.3d 550, 556 (8th Cir.2005) (quoting United States v. Navarrete-Barron, 192 F.3d 786, 790 (8th Cir.1999)). During an investigative stop, officers should use the least intrusive means of detention and investigation reasonably necessary to achieve the purpose of the detention. Id. During a Terry stop, officers are authorized to take such steps as are reasonably necessary to protect their personal safety and to maintain the status quo during the stop. Id. This court has previously held that use of handcuffs can be a reasonable precaution during a Terry stop to protect their safety and maintain the status quo. See. e.g. United States v. Summe, No. 05-4179, 2006 WL 1458293 (8th Cir. May 30, 2006) (unpublished) (holding that use of cuffs to detain suspected accomplice did not constitute arrest); United States v. Saffeels, 982 F.2d 1199, 1206 (8th Cir.1992) (overruled on other grounds) (holding that using cuffs on robbery suspect did not convert Terry stop into arrest); United States v. Miller, 974 F.2d 953, 957 (8th Cir.1992) (concluding that cuffing of suspects during Terry stop where suspects outnumbered officers and where officers were concerned for safety was reasonably necessary to achieve purposes of Terry stop).
Here, the officers knew that the robbery had been accomplished by brandishing a gun. Martinez was a close match to the description of the robber, and Atkinson found him near the scene of the crime, acting suspiciously. The discovery of what Atkinson immediately recognized as a wad of cash on Martinez’s person reasonably led Atkinson and Missell to believe that Martinez might be the robber, and that he might still have the gun used to commit the crime. Placing Martinez in handcuffs was a reasonable response to the situation in order to protect the officers’ personal safety and to maintain the status quo. As such, the use of handcuffs did not convert this Terry stop into an arrest.
*908Martinez also argues that placing him in a patrol car and transporting him back to the bank made the stop an arrest. We do not agree. In United States v. Lego, 855 F.2d 542 (8th Cir.1988), this court held that confining a potentially dangerous suspect to a patrol car while checking his identification was not tantamount to an arrest. There, the “obvious exigencies of the situation” authorized the officer to continue the Terry stop by confining the suspect to the patrol car “until the situation stabilized and she could determine if full custodial arrest and detention were warranted.” Id. at 545. Here, the exigencies were such that the officers could not dispel their suspicions that had prompted the Terry stop until they transported Martinez back to the bank for the show-up identification. In United States v. Montano-Gudino, 309 F.3d 501, 504 (8th Cir.2002), this court held that, given the circumstances, moving a suspect from one location to another did not exceed the bounds of Terry because it was reasonable to relocate the suspect for questioning.
In Hayes v. Florida, 470 U.S. 811, 105 S.Ct. 1643, 84 L.Ed.2d 705 (1985), the Supreme Court held that transporting a suspect from his home to a police station for questioning goes beyond the scope of a Terry stop and effects an arrest for which there must be probable cause. Here, the officers did not take Martinez to the police station during the Terry stop, but moved him only to the scene of the crime to help dispel or confirm their suspicions. Similarly, in United States v. Charley, 396 F.3d 1074, 1080 n. 4, 1081 (9th Cir.2005), the court, relying on Montano-Gudino and cases from seven other circuits, held that moving a suspect from the place officers found her to her own home in order to check on her children whom she may have harmed there did not effect an arrest. Thus, neither placing Martinez in the police car nor transporting him to the bank converted this Terry stop into an arrest for which probable cause was required.
Even if the stop could be considered an “arrest” following the cuffing of Martinez, the discovery of the wad of cash on his person provided probable cause to arrest him. See, e.g., United States v. Martin, 706 F.2d 263, 265 (8th Cir.1983) (finding that information officers obtained during investigatory stop “escalated the factual basis from one permitting an investigatory stop to one warranting an arrest”). Probable cause exists when, at the time of the arrest, “the available facts and circumstances are sufficient to warrant a person of reasonable caution to believe that an offense was being or had been committed by the person to be arrested.” United States v. Kelly, 329 F.3d 624, 628 (8th Cir.2003). Given the facts and circumstances known to Atkinson and Missell at the time they discovered the wad of cash, a reasonably cautious officer would believe that Martinez might well have committed the bank robbery, and thus probable cause existed to arrest him then.
B. Nature of Questioning By Officers in Park
Martinez also argues that his statements to the officers in the park should be suppressed because they were made in response to custodial interrogation without the benefit of Miranda warnings. Whether Martinez was “in custody” for purposes of Miranda after being handcuffed during the Ten-y stop is a separate question from whether that handcuffing constituted an arrest for which probable cause was required.
Miranda warnings are required only where a person’s freedom has been so restricted as to render him “in custody.” United States v. LeBrun, 363 F.3d 715, 720 (8th Cir.2004). The ultimate inquiry is *909whether (1) the person has been formally arrested, or (2) the person’s freedom of movement has been restrained to a degree associated with a formal arrest. Id. “ ‘Two discrete inquiries are essential to the determination: first, what were the circumstances surrounding the interrogation; and second, given those circumstances, would a reasonable person have felt he or she was not at liberty to terminate the interrogation and leave.’ ” Id. (quoting Thompson v. Keohane, 516 U.S. 99, 112, 116 S.Ct. 457, 133 L.Ed.2d 383 (1995)). “Thus, the critical inquiry is not whether the interview took place in a coercive or police dominated environment, but rather whether the defendant’s freedom to depart was restricted in any way.” Id. (internal quotation and citation omitted). “In answering this question, we look at the totality of the circumstances while keeping in mind that the determination is based on the objective circumstances of the interrogation, not on the subjective views harbored by either the interrogating officers or the person being questioned.” Id. (internal quotation and citation omitted). See also United States v. Ollie, 442 F.3d 1135, 1137 (8th Cir.2006).
In this case, Martinez was detained by two officers, patted down for weapons (with none being found), and closely questioned about his possession of weapons. Then, he was handcuffed and told he was being further detained. This occurred before being questioned by the two officers. A reasonable person would not, considering the totality of the circumstances, feel he was at liberty to stop the questioning and leave. Martinez’s freedom was restricted to a degree often associated with formal arrest, and we find he was in custody at the time he was handcuffed. He was interrogated about the wad of cash while in this custody, being asked at least twice to explain the presence of the cash. Thus, we find that Martinez was subjected to custodial interrogation.
The government argues that so long as the encounter remained a Terry stop, no Miranda warnings were required. But the Supreme Court has indicated that the analysis is not that simple. In Berkemer v. McCarty, 468 U.S. 420, 104 S.Ct. 3138, 82 L.Ed.2d 317 (1984), the Court looked to the circumstances involved in a traffic stop to conclude that the suspect’s freedom of action was not “curtailed to a ‘degree associated with formal arrest’ ” as to require Miranda warnings. Id. at 440, 86 S.Ct. 1602 (quoting California v. Beheler, 463 U.S. 1121, 1125, 103 S.Ct. 3517, 77 L.Ed.2d 1275 (1983) (per curiam)). In holding that the traffic stop at issue in Beheler was akin to a Terry stop, the Court held that, “by itself,” the stop did not render him “ ‘in custody.’ ” Id. at 441, 86 S.Ct. 1602. Analyzing the factual circumstances, the Court noted that the “respondent has failed to demonstrate that, at any time between the initial stop and the arrest, he was subjected to restraints comparable to those associated with a formal arrest.” Id. Thus, the Court looked not to the fact that the detention was a Terry stop, but rather to the circumstances bearing on the question of custody, just as we have done here. The Court noted that some traffic/Tern/ stops might involve such restraint, necessitating Miranda warnings. “If a motorist who has been detained pursuant to a traffic stop thereafter is subjected to treatment that renders him ‘in custody’ for practical purposes, he will be entitled to the full panoply of protections prescribed by Miranda. ” Id. at 440, 86 S.Ct. 1602. Citing Berkemer, this court has previously implied the possible need for Miranda warnings during a Terry stop. “[MJost Terry stops do not trigger the detainee’s Miranda rights.” United States v. Pelayo-Ruelas, 345 F.3d 589, 592 (8th Cir.2003) *910(emphasis added). In this ease, as we have said, Martinez was, under the circumstances, subjected to restraint associated with formal arrest, and was interrogated during that custody. Therefore, we follow the Supreme Court’s cue and find that he was entitled to Miranda warnings at the time he was handcuffed. Since Miranda warnings were not given before Martinez gave conflicting accounts of how he got the wad of cash, those statements should have been suppressed.
Though failing to suppress the statements made in the park was error, we find it was harmless. “An error is harmless if it does not affect substantial rights of the defendant, and did not influence or had only a slight influence on the verdict.” United States v. Davis, 449 F.3d 842, 847 (8th Cir.2006) (internal quotations and citations omitted).
Martinez argues that his contradictory explanations about the cash, the cash seized, and his participation in the show-up identification were all “fruit of the poisonous tree” under Wong Sun v. United States, 371 U.S. 471, 83 S.Ct. 407, 9 L.Ed.2d 441 (1963). However, we have found that handcuffing Martinez in the park did not convert the Terry stop into an arrest, and that even if it did, it was supported by probable cause. Thus, any arrest that might have allegedly occurred was not unlawful. Martinez has not shown that the police decided to take him to the bank for the show-up identification because he gave them contradictory statements. The Court in Wong Sun proceeded to a “fruit of the poisonous tree” analysis because “[t]he prosecutor candidly told the trial court that ‘we wouldn’t have found [the incriminating evidence] except that [the defendant] helped us to.’ ” Id. at 487, 83 S.Ct. 407. In this case, the record indicates that Atkinson was instructed to bring Martinez to the bank. We think, in this case, the identification of Martinez by the teller at the bank was obtained at least “by means sufficiently distinguishable” from, if not independent of, Martinez’s non-Mirandized statements. Id. at 488, 83 S.Ct. 407. The cash retrieved from Martinez was fair game for seizure, as its discovery did not rely on his statements, and we have found that probable cause existed for his arrest at the time of its discovery. Thus, Martinez’s “fruit of the poisonous tree” argument fails, and only his contradictory statements in the park should have been suppressed. Given the other admissible evidence against Martinez, we find that failure to suppress these statements did not sufficiently influence the jury to merit our reversal, and thus was harmless error.
C. The Show-Up Identification
Martinez argues that the introduction at trial of the results of the show-up identification violated his procedural due process rights because the procedure used was unduly suggestive and unreliable. “A crime victim’s identification of the defendant is admissible unless it is based upon a pretrial confrontation between the witness and the suspect that is both impermissibly suggestive and unreliable.” United States v. King, 148 F.3d 968, 970 (8th Cir.1998) (internal quotation omitted). “An identification is unreliable if its circumstances create ‘a very substantial likelihood of irreparable misidentifícatíon.’ ” Id. (quoting Brodnicki v. City of Omaha, 75 F.3d 1261, 1265 (8th Cir.1996)). “Police officers need not limit themselves to station house line-ups when an opportunity for a quick, on-the-scene identification arises. Such identifications are essential to free innocent suspects and to inform the police if further investigation is necessary.” Id. “ ‘[A]bsent special elements of unfairness, prompt on-the-scene confronta*911tions do not entail due process violations.’ ” Id. (quoting Russell v. United States, 408 F.2d 1280, 1284 (D.C.Cir.1969)) (alteration in original).
Though Martinez argues that the show-up was unduly suggestive because he was handcuffed, he had been driven to the bank in a police car, and because police officers were present, “[n]ecessary incidents of on-the-scene identifications, such as the suspectf] being handcuffed and in police custody, do not render the identification procedure impermissibly suggestive.” Id. “Whether such factors cast doubt on the accuracy of a positive identification is an issue for the jury.” Id. Given the facts in this case, we do not believe the show-up identification was unduly suggestive. Even if it was, we do not find that the circumstances created “ ‘a very substantial likelihood of irreparable misidentification’ ” because the teller’s identification was reliable. Id. (quoting Brodnicki v. City of Omaha, 75 F.3d 1261, 1265 (8th Cir.1996)). “Given [the teller’s] opportunity to clearly observe the robber[], [her] direct dealing with him at the time of the offense, [her] prior description of the robber!], the certainty of his identification, and the short time between the robbery and his identification,” the show-up identification was reliable. United States v. Woody, 690 F.2d 678, 680 (8th Cir.1982) (holding that the show-up identification was reliable in spite of being unduly suggestive, and thus permissible). Therefore, admission at trial of the results of the show-up identification, as well as the subsequent identification of Martinez by the teller at trial, did not violate Martinez’s procedural due process rights. King, 148 F.3d at 970.
III. CONCLUSION
Finding no other non-frivolous issues, we affirm.
. The Honorable John R. Tunheim, United States District Judge for the District of Minnesota, adopting the report and recommendation of the Honorable Raymond L. Erickson, United States Magistrate Judge for the District of Minnesota.