Anthony L. Johnigan appeals from a final judgment entered in the United States District Court for the Western District of Missouri 1 upon a plea of guilty entered on November 28, 1994, to one count of possession with intent to distribute 50 grams or more of a substance containing cocaine base, in violation of 21 U.S.C. § 841(a)(1), (b)(1)(A). Johnigan was sentenced to 360 months in prison, five years of supervised release, and a special assessment of $50.00. United States v. Johnigan, No. 4:94-00024-1 (W.D.Mo. Oct. 6, 1995) (judgment). For reversal, Johnigan argues that the district court (1) erred in denying his motion to suppress evidence; (2) clearly erred in finding that he had not accepted responsibility for purposes of applying U.S.S.G. § 3E1.1; and (3) erred in denying his motion for a downward departure based upon substantial assistance under U.S.S.G. § 5K1.1. For the reasons discussed below, we affirm.
Background
The underlying facts are summarized as follows. In January 1994, the manager of the Courtyard Marriott Hotel in Kansas City, Missouri, reported to the police what appeared to be suspicious activity involving one of the hotel guests, registered under the name of Anthony Johnigan, with a home address in Hercules, California. The manager reported, for example, that Johnigan carried very large sums of cash on him, paid for his room in cash on a daily basis, and made numerous telephone calls to various numbers in California and the inner city area of Kansas City. The police checked those telephone numbers and determined that several of them corresponded with individuals who had been charged with narcotics violations. The police checked the records for “Anthony Johnigan” and found that he had a conviction for possession of crack, an outstanding warrant for his arrest for violating his parole, and three outstanding arrest warrants for traffic violations in Kansas City.
On January 24, 1994, upon learning that Johnigan had inquired about transportation from the hotel to the Kansas City airport, the police surveilled the hotel courtesy van and observed Johnigan leaving the hotel with an unknown female. At the airport, Johnigan purchased a ticket with cash, and then he *1334 and his female companion proceeded toward the gate area. At that time, two law enforcement officers approached them. The female, who identified herself as Jody Brewer, had identification in that name, and the ticket was issued to the same name. She gave the officers permission to search her two carry-on bags, in which no contraband was found. She then walked away. Meanwhile, one of the officers had asked to speak with Johni-gan separately, and he complied. When asked for his name, Johnigan initially identified himself as Randy McIntosh. 2 However, after the officer indicated that Brewer had identified him as Anthony, he admitted his real name was Anthony Johnigan. Johnigan was placed under arrest pursuant to the outstanding warrants against him, and he was given a Miranda warning. The officers conducted a pat-down search of Johnigan and found $8,666.00 in cash and Johnigan’s hotel room key. When asked for permission to search the hotel room, Johnigan told the officers to get a search warrant.
The police secured the hotel room while one of the law enforcement officers applied for a search warrant from a state court judge. After the officer had prepared his affidavit in support of the warrant application, but before the state court judge ruled on the application, a women representing herself as Johnigan’s mother attempted to gain access to Johnigan’s hotel room, purportedly to recover Johnigan’s personal items. This information was orally conveyed to the state court judge. That same day, the state court judge issued a warrant for the search of Johnigan’s hotel room. Law enforcement officers executed the search warrant and found, among other things, three plastic baggies containing a tan, rock-like substance (later analyzed to contain cocaine base) in the hotel room.
The next day, January 25, 1994, a criminal complaint was filed charging Johnigan with possession with the intent to distribute 50 grams or more of a substance containing cocaine base. On February 24,1994, a federal grand jury in the Western District of Missouri indicted Johnigan on the same charge. Johnigan initially entered a plea of not guilty.
On April 28, 1994, Johnigan changed his plea from not guilty to guilty. He entered his guilty plea in the district court based upon a written plea agreement with the government. The plea agreement stated, among other things:
“Substantial assistance” within the meaning of Sentencing Guidelines § 5K1.1 has been provided by the defendant. The government shall file a motion prior to sentencing in this case requesting the Court to reduce the sentence defendant would otherwise receive under Sentencing Guidelines § 5K1.1. The government reserves the right to request a reduction generally or a specific sentence or sentence reduction.
Brief for Appellant, Addendum at 12 (Plea Agreement ¶ 9). Another paragraph of the plea agreement stated:
The parties agree under § 3El.l(b) of the Sentencing Guidelines that a three-point reduction for acceptance of responsibility is appropriate based on [Johnigan’s] timely notice of [his] intent to plead guilty and timely providing information to the government concerning his involvement in this matter.
Id. at 10-11 (Plea Agreement ¶ 7). The plea agreement also provided “[i]f defendant fails to keep any promise in this agreement, the government, at its option, may: ... void the entire agreement and reinstate the original charges.” Id. at 18 (Plea Agreement ¶ 11).
Approximately one month after Johnigan’s April 28, 1994, plea hearing, his appointed attorney from the Federal Public Defender’s Office was relieved at Johnigan’s request, and new counsel was appointed. Johnigan subsequently asked for permission to withdraw his guilty plea, and permission was granted. The district court judge who had presided at Johnigan’s change of plea hearing then recused himself from the case, and the cause was reassigned to another judge.
*1335 On November 28, 1994, the date on which Johnigan’s jury trial was scheduled to begin, Johnigan, through his newly appointed attorney, filed a motion to suppress evidence and informed the district court of his desire to again change his plea from not guilty to guilty. At that point, no new plea agreement had been entered into between Johnigan and the government. A second change of plea hearing was held, at which Johnigan himself specifically acknowledged to the district court that the prior plea agreement, including the provisions related to acceptance of responsibility and substantial assistance, was no longer enforceable against the government. Tr. of Change of Plea Hearing (Nov. 28,1994) at 12-15. The district court accepted Johnigan’s guilty plea, conditioned upon the court’s consideration of Johnigan’s motion to suppress.
Initially, a magistrate judge considered Johnigan’s motion to suppress. Following an evidentiary hearing, the magistrate judge recommended that the motion be denied. United States v. Johnigan, slip op. at 12 (May 24, 1995) (magistrate judge’s report and recommendation) (hereinafter “Report and Recommendation”). The district court fully adopted the magistrate judge’s findings of fact and conclusions of law and denied Johnigan’s motion. Id. (June 8,1995).
Upon receiving the probation officer’s pre-. liminary presentence investigation report (PSR), Johnigan objected to its failure to include a downward adjustment for acceptance of responsibility under U.S.S.G. § 3E1.1. The government opposed Johni-gan’s objection. At sentencing, the district court declined to find that Johnigan had accepted responsibility within the meaning of § 3E1.1. Johnigan also moved pursuant to U.S.S.G. § 5K1.1 for a downward departure based upon substantial assistance. Johnigan argued that the government had acted irrationally in withholding a § 5K1.1 motion. The district court declined to depart and, consistent with the recommendation in the PSR, concluded that Johnigan had a total offense level of 37, criminal history category of VI (including a career offender enhancement), and a guidelines range of 360 months to life. The district court sentenced Johni-gan to the minimum sentence under the guidelines, 360 months, 3 plus five years of supervised release and a special assessment of $50.00. Johnigan appealed.
Discussion
Denial of motion to suppress evidence
Johnigan argues that the district court erred in denying his motion to suppress evidence. Specifically, he maintains that the items seized upon execution of the search warrant, the statements he made at the airport, and the cash found on his person after his arrest at the airport should all be suppressed as fruits of an illegal investigatory stop which was not based upon a reasonable and articulable suspicion of criminal activity, as required by
Terry v. Ohio,
The Supreme Court has recently clarified that “as a general matter determinations of reasonable suspicion and probable cause should be reviewed
de novo
on appeal.”
Ornelas v. United States,
— U.S. -, -,
A trial judge views the facts of a particular case in light of the distinctive features and events of the community; likewise a police officer views the facts through the lens of his [or her] police experience and expertise. The background facts provide a context for the historical facts, and when seen together yield inferences that deserve deference.
Id.
In the present case, we review the magistrate judge’s findings of fact and conclusions of law regarding Johnigan’s motion to suppress, as they were adopted in their entirety by the district court. Following an evidentiary hearing, the magistrate judge first found that the encounter between the officers and Johnigan at the airport was “a purely consensual encounter based upon the Defendant Johnigan’s expressed agreement to speak with [one of the officers].” Report and Recommendation, slip op. at 9-10. In any event, the magistrate judge concluded, even if an investigatory stop did take place, the officers had a reasonable suspicion that the individual they stopped at the airport was wanted in connection with a felony because they were aware that a person by the name of Anthony Johnigan (the name he had used at the hotel) had outstanding arrest warrants in California and Kansas City.
Id.
at 10 (citing
United States v. Hensley,
Upon
de novo
review, giving due weight to the magistrate judge’s historical findings and inferences, we agree with the ultimate conclusions that: at the time of the airport stop, the officers reasonably suspected Johnigan of having engaged in felonious conduct; the officers did not exceed their authority in questioning, arresting, and searching Johni-gan; and the issuance of the search warrant for the hotel room was supported by proba
*1337
ble cause.
5
Moreover, contrary to Johnigan’s other arguments, the officers were not required to give Johnigan a
Miranda
warning at the time they were questioning him prior to his arrest.
United States v. McGauley,
Denial of downward adjustment for acceptance of responsibility
Johnigan also argues that the district court committed clear error in failing to find that he “clearly demonstrat[ed] acceptance'of responsibility for his offense” and in failing to additionally find that he “timely provid[ed] complete information to the government concerning his own involvement in the offense.” U.S.S.G. § 3E1.1.
6
Thus, he argues that he should have received a two-level downward adjustment for acceptance of responsibility, under § 3El.l(a), and an additional one-level downward adjustment for providing complete information, under § 3El.l(b)(l). Johnigan concedes that the paragraph in the plea agreement, referring to his acceptance of responsibility, was advisory and, in any ease — as he acknowledged at his change of plea hearing on November 28, 1994 — he could no longer enforce the plea agreement once he withdrew his first guilty plea. He also concedes that the district court’s finding regarding his acceptance of responsibility is entitled to great deference on review. Nevertheless, he argues, a finding of clear error is justified in the present case because he twice admitted his guilt and, prior to his first guilty plea, he provided timely information about his involvement in the underlying offense and even helped to arrange a drug transaction in California. In support of his position, Johnigan also cites the commentary to the guidelines, which indicates that, in rare situations, a defendant may be deemed to have accepted responsibility if, for example, the defendant admits the factual allegations underlying the charge but pursues a trial in order to challenge the constitutionality of a statute or the application of a statute to the admitted conduct. U.S.S.G. § 3E1.1, comment, (n.2). Johnigan argues that his circumstances are analogous to the example cited in the commentary because he withdrew his first guilty plea only to preserve his Fourth Amendment challenge to the airport stop and the subsequent hotel room search— a challenge which Johnigan claims his first appointed attorney failed to consider despite his repeated requests. Brief for Appellant at 17 (citing Tr. of Change of Plea Hearing (Nov. 28, 1994) at 33-35; Tr. of Sentencing' (Oct. 6, 1995) at 26-28). Johnigan also relies on the dissenting opinion in
United States v. Passmore,
On appeal, we review for clear error the district court’s finding that Johnigan had not accepted responsibility within the meaning of U.S.S.G. § 3E1.1.
United States v. Furlow,
“[Wjhether a defendant has accepted responsibility is a factual question which depends largely on credibility assessments by the sentencing court.”
United States v. Flores,
Denial of downward departure based upon substantial assistance
Lastly, Johnigan argues that the district court erred in denying his motion for a downward departure pursuant to U.S.S.G. § 5K1.1.
9
Ordinarily, the district court lacks authority to depart downward pursuant to § 5K1.1 absent a government motion.
United States v. Kelly,
In the present case, Johnigan maintains that, by directing the district court’s attention to Paragraph 9 of the plea agreement at the sentencing hearing, he sufficient *1339 ly demonstrated to the district court the irrationality of the government’s refusal to bring a § 5K1.1 motion. See Tr. of Sentencing (Oct. 6, 1995) at 17 (defense counsel’s reference to statement in the plea agreement that cooperation had been provided). Johni-gan suggests that, notwithstanding the unen-forceability of the plea agreement, that document proved to the district court that “ ‘[substantial assistance’ within the meaning of Sentencing Guidelines § 5K1.1 ha[d] been provided by the defendant.” Brief for Appellant, Addendum at 12 (Plea Agreement ¶ 9). Moreover, he asserts in this appeal, at the first change of plea hearing, the prosecutor stated “I told Mr. Johnigan that based on his endeavor to provide us assistance, and assistance thereafter provided, that I would recommend a sentence of ten years in this case” and later stated “with the assistance that he has provided to the Government, with respect to others engaged in narcotic trafficking, it is my intent to file a 5K1 motion to allow the Court to depart below the Sentencing Guideline range.” Tr. of Change of Plea Hearing (Apr. 28,1994), at 23-24, 26. Johni-gan now maintains that these statements made by the prosecutor belie her later claims at the sentencing hearing that the assistance he had provided was unreliable and of negative value. See Tr. of Sentencing (Oct. 6, 1995) at 22-23. Thus, Johnigan argues, because he did provide substantial assistance to the government, from which the government benefited, it was irrational for the prosecutor not to move for a downward departure.
In Wade, the Supreme Court held that a claim that a defendant merely provided substantial assistance will not entitle a defendant to a remedy or even to discovery or an evidentiary hearing. Nor would additional but generalized allegations of im-' proper motive.... [A] defendant has no right to discovery or an evidentiary hearing unless he [or she] makes a “substantial threshold showing.”
Johnigan raised the issue of a downward departure based upon substantial assistance at the sentencing hearing. Brief for Appellant at 9, 27 (citing Tr. of Sentencing (Oct. 6, 1995) at 15-18). At that time, the written statement in the plea agreement acknowledging Johnigan’s cooperation was brought to the district court’s attention, but the oral statements made by the prosecutor at the first change of plea hearing were not. 1 Upon consideration of this issue, the district court judge noted that, although he understood why Johnigan felt entitled to a departure based upon the plea agreement, that agreement had been nullified as a result of Johnigan’s withdrawal of his first guilty plea. Tr. of Sentencing (Oct. 6, 1995) at 24. We hold that, under the facts of the present ease, the district court acted appropriately in disregarding the plea agreement. The district court also noted that the government had expressed the view that the assistance provided by Johnigan turned out to be unreliable. Id. Indeed, contrary to Johnigan’s claim that his assistance had been beneficial to the government, the government specifically described his assistance as having negative value. Therefore, upon review, we conclude that Johnigan did not make a substantial threshold showing to the district court that the government’s ground for withholding a § 5K1.1 motion was not rationally related to any legitimate government end. Accordingly, we hold that the district court properly denied Johnigan’s motion for a downward departure.
*1340 Conclusion
For the foregoing reasons, the judgment of the district court is affirmed.
Notes
. The Honorable Fernando J. Gaitan, Jr., United States District Judge for the Western District of Missouri.
. A check of local records showed that a "Randy McIntosh” had an arrest for a narcotics violation, disposition unknown.
. By contrast, in connection with the plea agreement, the government had been prepared to recommend a sentence of ten years based upon Johnigan's substantial assistance. See Tr. of Change of Plea Hearing (Apr. 28, 1994) at 24.
. The government responds by arguing that "pretext" is ordinarily an argument used in traffic stop cases. In any event, the government correctly points out, the airport stop in the present case could not have been unlawfully pretextual because the officers were legally authorized to stop Johnigan based on their belief that he had outstanding anrest warrants. Brief for Appellee at 27 (quoting
United States v. Hamby,
. Because we hold that there was probable cause for the search, we need not address the applicability of the good faith exception to the exclusionary rule,
see United States v. Leon,
. U.S.S.G. § 3E1.1 provides in pertinent part:
(a) If the defendant clearly demonstrates acceptance of responsibility for his [or her] offense, decrease the offense level by 2 levels.
(b) If the defendant qualifies for a decrease under subsection (a), the offense level determined prior to the operation of subsection (a) is level 16 or greater, and the defendant has assisted authorities in the investigation or prosecution of his [or her] own misconduct by taking one of the following steps: (1) timely providing complete information to the government concerning his [or her] own involvement in the offense;
decrease the offense level by 1 additional level.
. After Johnigan made this statement, the district court directed defense counsel to inquire further, at which point Johnigan then admitted the factu-albasis of the charge to which he was pleading guilty. Tr. of Change of Plea Hearing (Nov. 28, 1994) at 25-28.'
. In its brief on appeal, the government relies on a letter Johnigan allegedly wrote to the district court judge who had accepted his first guilty plea. In that letter, Johnigan allegedly claimed he was innocent. No such letter appears in the record on appeal, however, and we therefore do not consider it.
.U.S.S.G. § 5K1.1 provides in pertinent part:
Upon motion of the government stating that the defendant has provided substantial assistance in the investigation or prosecution of another person who has committed an offense, the court may depart from the guidelines.
. Notably, the district court judge who presided at the sentencing hearing was not the judge who had presided at the April 28/ 1994, change of plea hearing.
