United States v. Sherwood — Corroborated, Non‑Anonymous 911 Gunshot Calls Support a Terry Stop; Weapon Admission Allows Pocket Entry During a Frisk

1. Introduction

In United States v. Sherwood (10th Cir. Mar. 10, 2025) (Order and Judgment), the Tenth Circuit affirmed the denial of multiple suppression motions and upheld a firearm-related sentencing enhancement in a drug case arising from a late-night Tulsa stop of a white Chevrolet Silverado.

Key parties: The United States (Appellee) and Adam Douglas Sherwood (Appellant), a passenger in the stopped vehicle.

Core issues: (1) whether multiple emergency calls about gunshots supplied reasonable suspicion for the initial stop under Terry v. Ohio; (2) whether officers had probable cause to search the truck; (3) whether a frisk of Sherwood (including reaching into his pocket) was supported by reasonable suspicion and stayed within Terry’s scope; (4) whether McGirt v. Oklahoma undermined state authority such that evidence and a state-issued phone warrant should be suppressed; (5) whether the district court properly applied U.S.S.G. § 2D1.1(b)(1).

2. Summary of the Opinion

  • Jurisdiction/authority after McGirt: Suppression was unavailable because, under United States v. Pemberton, the exclusionary rule does not apply where officers acted with an objectively reasonable good-faith belief their conduct was lawful—especially where the stop/searches occurred before McGirt v. Oklahoma.
  • Initial stop: Eight emergency callers (not anonymous) reporting gunshots, including calls identifying a white Chevrolet Silverado at a specific address, provided reasonable suspicion under the totality of circumstances.
  • Vehicle search: Probable cause existed to search the truck based on the gunshot reports, the matching vehicle and location, occupants’ admissions of felony gun convictions, nervous behavior, and observed holsters (including an empty holster on the driver).
  • Frisk and pocket entry: Officers had reasonable suspicion to frisk Sherwood; once Sherwood stated he had a pocketknife in a specified pocket, the officer could reach into that pocket for safety. The discovery of methamphetamine during that lawful protective action was not suppressible.
  • Phone search warrant challenge: A Franks v. Delaware theory (misleading affidavit) was forfeited because it was not raised below and no plain-error argument was presented on appeal.
  • Sentencing: The § 2D1.1(b)(1) enhancement was affirmed because proximity and context supported weapon possession in connection with drug trafficking, and Sherwood failed to show it was “clearly improbable” the firearms were connected to the offense.

3. Analysis

3.1. Precedents Cited

A. Fourth Amendment framework and appellate review

  • Terry v. Ohio: Provided the foundational two-part test for investigative detentions—(i) justified at inception and (ii) scope reasonably related to the justification.
  • United States v. Madrid: Reaffirmed the two-part Terry test and was used both as a framework and as an illustrative comparator for reasonable suspicion based on an emergency call with limited descriptors.
  • United States v. Arvizu and United States v. Sokolow (with United States v. Montoya de Hernandez): Supplied “totality of the circumstances” and clarified that reasonable suspicion requires articulable facts (not a hunch) and is less demanding than probable cause.
  • United States v. Leon and United States v. Cortez: Set the standard of review for suppression rulings (facts viewed favorably to the government; de novo review of Fourth Amendment reasonableness).
  • Stone v. High Mountain Mining Co., LLC and Holdeman v. Devine: Provided the “clearly erroneous” standard for factual findings.

B. Emergency calls and reasonable suspicion

  • United States v. Daniels: The panel relied on this recent Tenth Circuit articulation that an emergency call can justify a stop when it has sufficient indicia of reliability and provides enough information for reasonable suspicion.
  • Florida v. J.L. and United States v. Chavez: Supplied the five-factor reliability test for tips/emergency calls: (1) true anonymity, (2) contemporaneous firsthand knowledge, (3) detail, (4) motivation, and (5) corroboration. The court applied those factors and emphasized that the callers here were identified and corroborated each other.
  • United States v. Juvenile T.K., United States v. Burgess (7th Cir.), and United States v. Bold: Served as persuasive comparators showing that reports of shots fired and limited vehicle descriptions can still support reasonable suspicion, especially when combined with temporal/geographic proximity.

C. Automobile searches and probable cause

  • United States v. Bradford (quoting Florida v. Meyers): Restated that warrantless automobile searches require probable cause.
  • United States v. Saulsberry (quoting United States v. Chavez, 534 F.3d 1338): Provided the “fair probability” standard and the rule that probable cause allows searching the entire vehicle and containers that might hold contraband.
  • Maryland v. Dyson, Michigan v. United States, United States v. Burgess (10th Cir. 2009), and United States v. Downs: Offered examples of evidentiary bases that can amount to probable cause (tips, open containers, dog alerts, odor). The court used these as guideposts, then held the combined gunshot reports + observed holsters + felony gun histories + behavior supported probable cause.

D. Frisks, protective searches, and pocket entry

  • United States v. Hammond (quoting Arizona v. Johnson): Confirmed officers may order driver and passengers out during a lawful stop.
  • Knowles v. Iowa: Cited for the proposition that a pat-down requires reasonable suspicion the person is armed and dangerous.
  • United States v. Albert: Reinforced that reasonable suspicion is “specific and articulable facts,” evaluated under totality of circumstances.
  • United States v. King (citing Long): Supported the officer-safety balancing: when there is an objective basis to believe a detainee is armed and dangerous, officer safety outweighs the detainee’s Fourth Amendment interest.
  • Adams v. Williams: Supported the permissibility of a limited weapon search during lawful detention based on reasonable suspicion that a person is armed.
  • United States v. Rochin: The court used Rochin’s “not a game of blind man’s bluff” principle to justify removing an unknown object from a pocket when officer safety is implicated; an officer need not “fish around” to identify an object through guesswork.
  • United States v. Melendez-Garcia and United States v. Perdue: Supported deference to officer-safety judgments and the permissibility of reasonably necessary steps to protect officers and maintain the status quo during a Terry stop.

E. McGirt-related suppression and good faith

  • McGirt v. Oklahoma: Triggered the defendant’s argument that the stop occurred in Indian country, undermining state authority.
  • United States v. Pemberton: Controlled the outcome; the panel applied Pemberton’s holding that suppression is inappropriate when officers acted under an objectively reasonable good-faith belief their conduct was lawful (and thus deterrence does not justify exclusion), including when state actors operated pre-McGirt in areas later recognized as Indian country.

F. Preservation/forfeiture and Franks claims

  • Franks v. Delaware: Identified the doctrine Sherwood sought to invoke (material, reckless falsehoods/omissions in an affidavit). The court did not reach its merits due to forfeiture.
  • United States v. Leffler (citing Richison v. Ernest Grp., Inc. and United States v. Kearn): Provided the forfeiture rule and the requirement that a party seeking first-time-on-appeal review must argue plain error.

G. Sentencing enhancement: firearm possession in drug cases

  • United States v. Portillo-Uranga (quoting United States v. Mollner): Supplied the standard of review for guideline application.
  • United States v. Pompey (quoting United States v. Vaziri): Established the burden-shifting framework—government shows temporal/spatial relationship between weapon, drug activity, and defendant; defendant must show “clearly improbable” connection.
  • United States v. Zavalza-Rodriguez: Clarified that “possession” for § 2D1.1(b)(1) can be constructive “possession by proximity.”

3.2. Legal Reasoning

A. The stop: why these emergency calls were enough

The panel treated the emergency calls as a reliability-driven basis for suspicion rather than mere “anonymous tip” territory. Applying the Florida v. J.L./United States v. Chavez factors, the court emphasized:

  • Not truly anonymous: callers provided names and contact information.
  • Contemporaneous and firsthand: callers reported what they were hearing/seeing in real time.
  • Detail plus corroboration: eight independent calls clustered in time and geography, with overlapping descriptions—one identifying a “white Chevrolet Silverado” and an address match.
  • Neutral motivation: no evidence of ulterior motive; callers appeared to be concerned citizens.

The defendant’s “30-minute gap” and “common vehicle” arguments failed because reasonable suspicion is a totality inquiry (United States v. Arvizu), and the court viewed the late hour, the exact address match, and the seriousness of gunfire reports as amplifying suspicion. The stop was upheld even without resolving a disputed license-plate-light basis.

B. Probable cause to search the vehicle: aggregation matters

The court’s probable cause analysis turned on accumulation. Standing alone, any single item (e.g., “nervousness”) might be weak; together, the court found a “fair probability” (United States v. Saulsberry) the truck contained contraband or evidence:

  • Multiple corroborated gunshot reports tied to a matching vehicle and address;
  • Occupants’ admissions of prior felony gun convictions;
  • Observed holsters (including an empty holster on the driver);
  • Behavior characterized as unusually nervous and evasive.

Once probable cause existed, the court reiterated that officers could search the entire vehicle and relevant containers (United States v. Saulsberry).

C. The frisk and pocket entry: the opinion’s most operational rule

The frisk was upheld in two moves:

  1. Reasonable suspicion to frisk: Using the same factual cluster that supported the vehicle search—gunshot calls, felon gun histories, holsters, and behavior—plus the stop context, the court found reasonable suspicion that Sherwood could be armed and dangerous (United States v. Hammond; Knowles v. Iowa).
  2. Scope—reaching into the pocket: The court emphasized a practical safety principle: where the suspect himself states he has a weapon and identifies its location, an officer may retrieve it from the pocket rather than limiting the search to an outer pat-down. The court grounded this in officer-safety balancing (United States v. King), permissive weapon seizures during lawful detention (Adams v. Williams), and the idea that the Fourth Amendment does not require dangerous guesswork about objects in pockets (United States v. Rochin).

The fact that the officer found methamphetamine rather than a knife did not retroactively invalidate the protective search; contraband discovered during a lawful protective search is not suppressible merely because it is not a weapon (the opinion cites Long for this proposition).

D. McGirt and exclusion: good faith forecloses suppression

Sherwood’s Indian-country argument was functionally foreclosed by United States v. Pemberton. The court treated the decisive question as deterrence: if officers (and a state judge issuing a warrant) acted with an objectively reasonable good-faith belief in their authority—particularly pre-McGirt v. Oklahoma—then suppressing evidence would not serve the exclusionary rule’s purpose.

E. Procedure matters: forfeiture blocked additional Fourth Amendment theories

The court refused to consider (i) a new appellate argument that handcuffing constituted an arrest, and (ii) a Franks v. Delaware challenge to the phone-warrant affidavit, because they were not raised below and no plain-error framework was properly invoked under United States v. Leffler.

F. Sentencing: proximity and burden shifting under § 2D1.1(b)(1)

On sentencing, the opinion reaffirmed a practical standard: once the government shows a temporal/spatial relationship among drugs, firearms, and the defendant, the enhancement applies unless the defendant shows it is “clearly improbable” the weapon was connected to the offense (United States v. Portillo-Uranga; United States v. Pompey). The court emphasized constructive possession by proximity (United States v. Zavalza-Rodriguez), relying on the guns’ presence in the truck alongside drug distribution indicators (scales, baggies, methamphetamine, text evidence) and testimonial context.

3.3. Impact

  • Emergency calls as a stop predicate: The decision strengthens the government’s position (within the persuasive weight of a nonprecedential disposition) that multiple identified callers reporting an ongoing violent offense, with consistent geographic/temporal clustering and partial vehicle description, can create reasonable suspicion even with a modest time gap.
  • Frisk scope when a weapon is admitted: Operationally, the opinion signals that a suspect’s admission of a weapon and its location can justify immediate pocket entry as a protective step—reducing the practical significance of disputes about whether a pat-down occurred first, so long as officer safety concerns are objectively grounded.
  • McGirt suppression litigation: By applying United States v. Pemberton, the opinion continues the Tenth Circuit trend of channeling McGirt-era authority problems into a good-faith analysis that often defeats suppression absent proof of bad faith.
  • Appellate preservation: The refusal to reach Franks v. Delaware arguments underscores that defendants must clearly raise affidavit-falsity/omission theories in the district court (and demand a Franks hearing where appropriate) or risk losing them.
  • Guidelines practice: The enhancement discussion reiterates how readily § 2D1.1(b)(1) may apply when guns and drug-trafficking evidence are co-located, shifting a meaningful “clearly improbable” burden onto the defendant.

4. Complex Concepts Simplified

  • Reasonable suspicion vs. probable cause: Reasonable suspicion is a lower standard—specific, articulable facts suggesting crime “may be afoot.” Probable cause requires a “fair probability” evidence/contraband will be found.
  • Terry stop and frisk: A Terry stop is a brief detention for investigation; a Terry frisk is a limited protective search for weapons when the officer reasonably suspects the person is armed and dangerous.
  • Reliability of 911/emergency calls: Courts assess whether callers are anonymous, whether they report firsthand and contemporaneously, whether they provide detail, whether they have an apparent motive to lie, and whether officers (or other evidence) corroborate them.
  • Good-faith exception/exclusionary rule rationale: Evidence is suppressed primarily to deter unlawful police conduct. If officers reasonably believed they acted lawfully, suppression may not deter anything and may be denied.
  • Franks claim: A defendant can challenge a warrant if the supporting affidavit included material lies or omissions made knowingly or recklessly; but the claim must be properly raised and developed in the trial court.
  • § 2D1.1(b)(1) and “possession by proximity”: For the guideline enhancement, the government often need only show the firearm was present and spatially/temporally related to drug activity; the defendant must then show it’s clearly improbable the gun was connected to the offense.

5. Conclusion

United States v. Sherwood affirms a combined Fourth Amendment and sentencing framework: corroborated, non-anonymous emergency gunshot reports can furnish reasonable suspicion for a Terry stop; a cluster of facts (gunshot reports, matching vehicle/location, felon gun histories, holsters, behavior) can rise to probable cause for a vehicle search; and, critically, a detainee’s admission that a weapon is in a specified pocket can justify an officer’s reaching into that pocket as a protective measure. Procedurally, the decision also illustrates how forfeiture blocks late-breaking Franks v. Delaware and related theories, while the sentencing portion reiterates the burden-shifting, proximity-based reality of § 2D1.1(b)(1).