United States v. Porter

No. 25-60163 (5th Cir. Mar. 17, 2026) · United States Court of Appeals for the Fifth Circuit · March 17, 2026 · No. 25-60163

Summary

The Fifth Circuit affirmed Elijah Porter's conviction for possessing a machinegun in violation of 18 U.S.C. § 922(o). The court held that use of the license plate reader did not constitute a Fourth Amendment search, that the traffic stop was supported by reasonable suspicion, and that the firearm and conversion switch were properly observed in plain view. The court also held that Fifth Circuit precedent foreclosed Porter’s Second Amendment challenge to § 922(o).

Court
United States Court of Appeals for the Fifth Circuit
Writing for the Court
Jerry E. Smith; Wiener; Higginson
Jurisdiction
United States Court of Appeals for the Fifth Circuit
Decision date
March 17, 2026
Docket number
25-60163
Procedural posture
Porter appealed his criminal conviction after the district court denied his motion to suppress vehicle-location data and firearm evidence and rejected his constitutional challenge to 18 U.S.C. § 922(o). He consented to a bench trial and was found guilty.
Standard of review
The court reviewed factual findings on the suppression motion for clear error and legal conclusions, including whether an expectation of privacy was reasonable, de novo. It viewed the evidence in the light most favorable to the Government and applied a particularly strong clearly erroneous standard when the suppression ruling was based on live testimony. The preserved constitutional challenge was reviewed de novo.
Precedential value
Published Fifth Circuit opinion; precedential.
Parties
Elijah Porter v. United States of America
Disposition
affirmed

Topics

suppression of evidencefourth amendmentsearch and seizuresecond amendmentappellate procedure

Practice areas

criminal procedureconstitutional criminal lawevidenceappellate procedure

Questions Presented

  1. Whether the LPR-generated vehicle-location information constituted a Fourth Amendment search requiring a warrant.
  2. Whether the LPR alert and related information supplied reasonable suspicion for the traffic stop.
  3. Whether the Glock pistol and machinegun conversion switch were lawfully seized under the plain-view doctrine.
  4. Whether 18 U.S.C. § 922(o) violates the Second Amendment facially or as applied to Porter.

Holdings

  1. The use of the LPR system did not invade a reasonable expectation of privacy and therefore did not constitute a Fourth Amendment search; no warrant was required.
  2. The traffic stop was lawful because the ALPR alert and associated warrant information supplied reasonable suspicion to stop Porter’s vehicle.
  3. The seizure was lawful because the firearm and conversion switch were in plain view, their incriminating nature was immediately apparent, and the officer had lawful access to them.
  4. Porter’s facial and as-applied Second Amendment challenges to 18 U.S.C. § 922(o) failed because binding Fifth Circuit precedent holds that machineguns do not receive Second Amendment protection.

Key quotations

Because the use of an LPR did not constitute a search, no warrant was required; the stop was supported by reasonable suspicion, and the officer found the Glock and its machinegun conversion switch in plain view. (1)
Contrary to Porter’s assertion, the use of an LPR system did not invade any reasonable expectation of privacy and did not constitute a search, so no warrant was required. (6)
The traffic stop was lawful because Hoggard had reasonable suspicion to stop Porter’s vehicle. (9)
This court’s jurisprudence forecloses Porter’s Second Amendment challenge to 18 U.S.C. § 922(o) argument—machineguns “do not receive Second Amendment protection.” (13-14)

Factual background

A license plate reader alerted Officer Hoggard that a vehicle associated with Elijah Porter was connected to criminal activity and an outstanding aggravated-assault arrest warrant. Hoggard stopped the vehicle, identified Porter as the driver, and observed a Glock and a machinegun conversion switch protruding from beneath the driver’s seat; he later retrieved the firearm. The district court found the officer’s testimony credible, concluded that the LPR information supported reasonable suspicion, and found that the firearm and switch were in plain view.

Procedural history

Porter was charged in the Southern District of Mississippi with possessing a machinegun in violation of 18 U.S.C. § 922(o). The district court denied his motion to suppress, ruled that § 922(o) was constitutional, and found him guilty following a bench trial to which Porter consented. The Fifth Circuit affirmed.

Court Document

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