Cumulative Circumstances Can Justify an Investigatory Stop and Proportionate Protective Force

United States v. Warner
United States Court of Appeals for the Tenth Circuit
No. 25-2149 — October 22, 2026
Opinion by Circuit Judge Gregory A. Phillips, joined by Circuit Judges Bacharach and Rossman.

Precedential status: This decision is an expressly nonprecedential order and judgment. It may be cited for its persuasive value, but it is not binding precedent except under law of the case, res judicata, and collateral estoppel. Its significance lies in its application of existing Fourth Amendment principles, not in establishing a new binding rule.

1. Introduction

United States v. Warner examines when several individually lawful or ambiguous circumstances collectively justify a brief investigatory detention. It also addresses when officers may draw firearms, point a weapon, and use handcuffs without converting that detention into an arrest requiring probable cause.

A sporting-goods-store employee contacted police after a man reportedly waited for other customers to leave before entering with what appeared to be a Taser. Responding officers encountered visibly frightened employees, who identified Nathan Warner in the parking lot’s only civilian vehicle. It was dark, nearby businesses were closing, and the surrounding area had experienced multiple crimes, including bank robberies. Approaching Warner’s truck, officers observed an accessible AR-style rifle and knife.

Warner disregarded commands to remain inside and place his hands on the dashboard. He instead exited, then complied with instructions to raise his hands. During the ensuing encounter, he claimed to be connected to explosives in the truck. Officers handcuffed and searched him, discovering drugs, drug paraphernalia, and a pistol. Dispatch subsequently reported that the truck was stolen and that Warner had outstanding arrest warrants. No Taser or explosives were found.

The resulting federal charges included firearm offenses, possession with intent to distribute methamphetamine, and a firearm offense connected to drug trafficking. One felon-in-possession count concerned a separate incident two days earlier. Warner sought suppression of evidence and statements arising from the parking-lot encounter, arguing that the officers lacked reasonable suspicion during the brief interval between his submission to their commands and his statements about explosives.

2. Summary of the Opinion

The district court granted suppression. It concluded that Warner was seized when he began complying by raising his hands and that the officers then lacked a particularized, objective basis for suspecting criminal activity.

The Tenth Circuit reversed on the government’s appeal under 18 U.S.C. § 3731. Its conclusions were:

  1. The circumstances collectively established reasonable suspicion. The reliable report, employees’ visible fear and identification, closing-time setting, local crime context, accessible weapons, and Warner’s initial noncompliance justified a brief investigation.
  2. The officers’ protective measures were reasonable. Their escalating use of firearms and handcuffs responded to concrete, continuing safety concerns and did not transform the stop into a de facto arrest.
  3. The district court’s analysis was too narrow. It focused principally on the suspicious-person call and firearm possession rather than considering the whole factual picture.

The court remanded for further proceedings. It did not determine Warner’s guilt.

3. Analysis: Legal Reasoning and Precedents Cited

A. Appellate Review and the Precise Moment of Seizure

The applicable review framework came from United States v. Lowe: an appellate court views the record favorably to the party who prevailed below and accepts factual findings unless clearly erroneous. Under United States v. Mosley, quoting United States v. Apperson, the ultimate Fourth Amendment reasonableness determination receives de novo review. Thus, the panel could accept the material historical facts while independently rejecting the district court’s constitutional conclusion.

The district court’s decision, United States v. Warner, No. 24-CR-88, 2025 WL 3002933, supplied much of the factual background and the reasoning under review. The appellate court identified one significant inconsistency: although the district court’s factual narrative described commands to remain in the truck, its analysis suggested Warner had obeyed an order to exit. Body-camera footage established that no such exit command occurred. Any finding to the contrary was clearly erroneous.

Brendlin v. California supplied the submission principle: a show of police authority does not itself complete a seizure without actual submission. The government did not challenge the district court’s determination that Warner’s seizure began when he raised his hands. The panel therefore evaluated reasonable suspicion at that agreed moment rather than independently resolving every possible seizure-timing question.

This timing was crucial. Warner’s initial refusal to follow instructions preceded the agreed seizure and could enter the reasonable-suspicion analysis. His later explosives statements, the discovery of contraband, the stolen-truck information, and the outstanding warrants could not retroactively justify the stop’s inception.

B. The Governing Framework: Objective Suspicion, Not Certainty

United States v. Raban provided the general proposition that Fourth Amendment searches and seizures often require a warrant and probable cause. United States v. Daniels and United States v. Madrid supplied the relevant exception: officers may conduct a brief investigatory stop when specific, articulable facts support reasonable suspicion that criminal activity has occurred, is occurring, or is about to occur.

The foundational authority was Terry v. Ohio. Under Terry, the question is whether the available facts would cause a reasonably cautious person to regard the intrusion as appropriate. The standard requires more than an unsupported hunch, but less than probable cause.

United States v. Sokolow, quoting Illinois v. Gates, explains why reasonable suspicion cannot be reduced to a rigid formula. United States v. Cortez requires assessment of the totality of the circumstances and a particularized, objective basis for suspecting the person stopped. Together, these authorities prevented the court from treating each fact as an isolated item that must independently suggest a crime.

United States v. Arvizu supplied an especially important qualification: officers need not eliminate every innocent explanation before undertaking a stop. United States v. Simpson reinforced that reasonable suspicion is not an onerous standard. Neither proposition removes the need for objective justification; rather, they explain why ambiguity does not necessarily defeat an otherwise supported investigation.

The opinion also relied on Pennsylvania v. Mimms to frame the constitutional balance between public interests and individual security against arbitrary police interference. The stop’s justification had to be assessed with both interests in view.

Suspicion need not identify a particular statutory offense

The district court appeared to give weight to the officers’ asserted lack of suspicion of a particular crime. The panel rejected that approach. United States v. Guardado establishes that direct evidence of a specific crime is unnecessary, while United States v. Conner recognizes that reasonable-suspicion doctrine often describes suspected wrongdoing in general terms.

Under United States v. McHugh, the inquiry is objective, making an officer’s subjective good faith or intentions immaterial. Accordingly, officers need not correctly name an offense, but the known facts must still objectively suggest criminal activity. A desire merely to investigate an unusual person is not an independent constitutional justification.

C. The Employee’s Report: Reliable, but Insufficient Standing Alone

United States v. Daniels supplied a two-part inquiry for information received through a police call: the report must possess adequate reliability and sufficient substantive information supporting suspicion of criminal conduct. These are distinct requirements. A credible report of lawful activity does not automatically justify detention.

For reliability, United States v. Chavez identifies relevant considerations: anonymity, contemporaneous firsthand knowledge, detail, motivation, and police corroboration. No single factor controls. Although the employee was unnamed in the record, the officers knew the caller’s workplace and could potentially discover the caller’s identity. United States v. Copening supported treating that traceability as a safeguard against fabricated reports. United States v. Chavez was particularly analogous because it also involved a caller identifiable through employment at a specified store.

When officers arrived, employees confirmed which person had prompted the call. That interaction corroborated aspects of the report and connected it to a specific individual. Nevertheless, the panel agreed with Warner that the report itself described no necessarily criminal or dangerous behavior. Waiting for other customers to leave and carrying a lawful Taser could have innocent explanations.

Warner invoked Navarette v. California to challenge the report’s substantive sufficiency. The court accepted the essential distinction underlying that argument: reliability alone does not establish that the reported conduct reasonably indicates crime.

Why the court distinguished Daniels

In United States v. Daniels, a near-anonymous caller reported men handling guns around an SUV and predicted they were preparing to do something. The court gave that generic report little weight. Moreover, the detained defendant plainly did not match the reported description.

Two features made Warner’s case stronger:

  • Direct observation of fear: Officers personally encountered visibly frightened employees, supplying information beyond the original description of unusual conduct.
  • Individualized identification: Employees pointed out the person responsible for their concern, and officers approached that person in the only civilian vehicle present.

United States v. Fisher reinforced the requirement that suspicion attach to the particular person stopped. United States v. Johnson, citing Florida v. J.L., explained the danger of generic tips that leave police excessive discretion to stop broad classes of people. The employees’ identification reduced that arbitrariness concern here.

District of Columbia v. R.W. supported commonsense inferences about human behavior, including the significance of visible fear. United States v. Gandara-Salinas similarly recognized officers’ ability to draw experience-based inferences from cumulative information. These authorities supported giving the employees’ demeanor some weight, not treating fear as conclusive proof of wrongdoing.

The locked storefront door added no decisive inference. The record did not establish whether employees locked it because of Warner or as an ordinary closing procedure. The panel correctly avoided turning that uncertainty into a factual finding against him.

D. Time and Location Required Context, Not a Checklist

United States v. Johnson recognizes that presence in an area associated with crime may be relevant but cannot alone establish reasonable suspicion. United States v. Daniels likewise warns against a mechanical assessment of time and location.

Being outside at approximately 9:00 p.m. is ordinarily unremarkable. Here, however, darkness, closing businesses, and an otherwise empty parking lot made the setting more pertinent. The reported bank robberies across the street also bore some relationship to the concern that a store robbery might be contemplated.

The comparison with United States v. Daniels illustrates the contextual approach. There, a late-night gathering in a well-lit, populated parking lot on Super Bowl night was unsurprising. The court did not treat nighttime as inherently suspicious in either case; it assessed what the surrounding circumstances made that fact mean.

The record remained imperfect. The opinion acknowledged uncertainty about the precise arrival and closing times and about the caller’s basis for saying Warner had waited for other customers to leave. Those gaps limit how broadly the decision should be generalized.

E. Lawful Weapons Could Contribute to Suspicion, but Could Not Substitute for It

The court recognized that openly possessing the rifle and knife was ordinarily lawful in New Mexico. Its discussion referenced N.M. Stat. Ann. § 30-7-2(A), addressing concealed loaded firearms and other deadly weapons.

United States v. Daniels, citing N.Y. State Rifle & Pistol Ass'n v. Bruen, cautions against treating presumptively lawful exercise of Second Amendment rights as inherently suspicious. This was an express limit on the government’s argument.

Nevertheless, United States v. Young allows lawful weapon possession to contribute to reasonable suspicion when combined with other circumstances. United States v. Briggs supplies the practical explanation: legally possessed weapons can still be used unlawfully.

The panel therefore assigned the weapons contextual significance. Their accessibility mattered alongside the employees’ concern, the closing-time setting, and Warner’s conduct. The decision does not establish that an accessible firearm alone permits detention.

F. Initial Noncompliance and Subsequent Compliance Both Mattered

United States v. Mosley supported considering a suspect’s initial disregard of an instruction concerning hand placement. United States v. Harris similarly treated refusal to remove hands from pockets as contributing to reasonable suspicion that a person was armed and dangerous.

Warner did more than fail to respond immediately: he exited after being told to remain inside and place his hands on the dashboard. In the setting confronting the officers, that movement added to their concern. His compliance seconds later also belonged in the analysis, but it did not erase the immediately preceding conduct.

This reasoning requires care. The opinion does not announce that declining any police request independently authorizes a stop, or that officers may manufacture reasonable suspicion through arbitrary commands. Its holding rests on the specific sequence, the agreed seizure timing, and the surrounding circumstances.

G. The Whole Picture and the Analogy to Terry

The court’s central criticism was that the district court reduced the case to a suspicious-person report plus firearm possession. That omitted several facts bearing on the report’s meaning and the particular person identified.

The analogy to Terry v. Ohio made the cumulative reasoning concrete. In Terry, repeated walking, looking into a store window, and conferring with others were individually compatible with innocence. Together, they reasonably suggested preparation for robbery. The Warner panel considered the same interpretive method appropriate here.

Some circumstances in Warner’s encounter were, in the panel’s view, more probative than their counterparts in Terry: the encounter occurred after dark, and officers actually observed weapons rather than merely fearing their presence. That comparison supported the result, but it did not create a categorical rule that nighttime weapon possession justifies a stop.

The controlling proposition was narrower: the combination of a traceable report, direct identification, visible fear, a relevant setting, accessible weapons, and immediate noncompliance provided an objective, individualized basis for brief investigation despite plausible innocent explanations.

H. Protective Force Did Not Automatically Convert the Stop into an Arrest

Warner alternatively argued that the officers’ show of force amounted to an arrest requiring probable cause. He had not raised this scope argument below, and the district court had not addressed it. The appellate court nevertheless chose to consider it and rejected it on the merits.

United States v. Madrid, applying Terry v. Ohio, requires a stop to remain reasonably related in scope to the circumstances justifying the interference. United States v. Melendez-Garcia emphasizes that the relatively modest justification necessary for an investigatory stop ordinarily supports only limited intrusions.

But United States v. Melendez-Garcia and United States v. Perdue also recognize that officers need not take unnecessary safety risks. They may take reasonable measures to protect themselves and preserve the situation while investigating. Conversely, Cortez v. McCauley warns that firearms, handcuffs, and comparable techniques can sometimes transform a stop into an arrest.

The court reconciled those principles through a sequence-specific analysis:

Police measure Circumstances supporting it
Drawing firearms at “low ready” Frightened employees and an accessible rifle inside the truck, in darkness.
Pointing a firearm at Warner Warner’s exit contrary to commands, after officers had observed accessible weapons.
Applying handcuffs Continuing danger, including Warner’s ensuing claims that he was connected to explosives.

The explosives statements could justify later protective measures even though they could not justify the stop retroactively. That distinction separates the justification for initiating a detention from the justification for its evolving scope.

The holding was not that handcuffs and drawn guns are always permissible during investigatory stops. It was that these measures were proportionate to the concrete dangers presented here.

I. Community Caretaking Was Not an Alternative Appellate Holding

The government had argued below that the officers acted in a community-caretaking capacity. United States v. King, quoting Cady v. Dombrowski, describes police functions divorced from criminal investigation and recognizes certain noninvestigatory detentions supported by specific, articulable circumstances.

The district court rejected that theory, and the government did not pursue it on appeal. Those precedents therefore explain a discarded alternative argument; they did not supply the appellate basis for upholding Warner’s detention. The panel’s decision rests on reasonable suspicion of criminal activity and reasonable protective measures.

4. Potential Impact and Limits

A. More Complete Suppression Analysis

The opinion offers persuasive guidance against selectively analyzing only the most conspicuous facts. Courts should assess incriminating and mitigating circumstances together, while recognizing that some carry little weight. A list of factors is not enough; the analysis must explain how they interact.

B. Stronger Distinction Between Reliable Information and Criminal Significance

The employee’s report demonstrates that a source can be reliable without describing crime. Future litigants may use the opinion to distinguish source credibility, identification of the person, and the substantive inference of wrongdoing. Each performs a different function.

C. Fact-Sensitive Treatment of Armed Encounters

The decision accommodates lawful weapon possession while allowing weapons to matter within a genuinely suspicious factual setting. Its limiting principle is important: lawful arms, a concerned observer, or a high-crime location cannot individually replace particularized suspicion.

D. Greater Attention to Chronology and Video Evidence

Small timing differences can determine which facts justify a seizure and which justify only later measures. Body-camera evidence also proved important in correcting the district court’s account of the commands. Future suppression litigation may turn on similarly precise reconstructions.

E. Separate Evaluation of Stop Justification and Protective Force

The opinion reinforces that reasonable suspicion does not authorize unlimited force. Courts must examine both the basis for detention and the necessity of each escalation. Conversely, justified protective force does not automatically require probable cause merely because it resembles an arrest.

F. No General Resolution of Other Suppression Questions

The panel rejected the asserted unlawful-stop and de facto-arrest grounds for suppression. It did not comprehensively decide every possible issue concerning searches, statements, interrogation, or admissibility. Nor did it resolve the abandoned community-caretaking theory. Its expressly nonprecedential status further limits its authority in future cases.

5. Complex Concepts Simplified

Reasonable suspicion
A concrete, fact-based reason to suspect criminal activity. It permits a brief investigation but requires more than a guess.
Probable cause
A stronger factual basis than reasonable suspicion, generally required for an arrest.
Totality of the circumstances
Considering how all relevant facts fit together, rather than requiring each fact to independently demonstrate wrongdoing.
Particularized suspicion
Suspicion linked to the individual stopped, not merely to a location or broad description.
Seizure by submission to authority
A detention occurring when someone actually submits to a police show of authority. Here, the parties accepted Warner’s raising his hands as the relevant moment.
De facto arrest
A detention that functions as an arrest despite being labeled a stop. Its intensity and circumstances matter; handcuffs alone do not automatically decide the question.
De novo review
The appellate court independently decides the legal question rather than deferring to the lower court’s answer.
Suppression and derivative evidence
Excluding evidence obtained through a constitutional violation, potentially including later evidence resulting from that violation. Warner’s argument depended on establishing an unlawful initial stop.
Nonprecedential decision
A decision that may persuade courts but generally does not bind them in other cases. The specified preclusion doctrines concern its effect within the same litigation or on matters already conclusively resolved.

6. Conclusion

United States v. Warner illustrates that lawful or ambiguous conduct can collectively support reasonable suspicion when the facts objectively converge on a particular person. It also confirms that proportionate responses to concrete safety threats need not convert an investigatory stop into an arrest.

The decision’s essential limits are equally important: lawful firearm possession is not itself suspicious, generalized concerns do not replace individualized facts, and later discoveries cannot retrospectively validate an unsupported stop. Although nonbinding, the opinion provides a useful model for analyzing cumulative suspicion, seizure timing, and escalating protective measures.