CA4: Traffic stop immediately became firearms investigation; suppressed

The officer immediately launching into an inquiry about firearms during a traffic stop violated Rodriguez. United States v. Martin, 2026 U.S. App. LEXIS 10979 (4th Cir. Apr. 17, 2026):

Here, Radford exceeded the scope of the seizure by immediately engaging in a criminal investigation unrelated to the traffic violation warranting the stop—obstruction of traffic by parking on a single-lane bridge. Initiating the stop, Radford first informed Martin and Jarvis that he was stopping them for parking on the single-lane bridge, and then he immediately asked about the presence of firearms. During the unrecorded two minutes of the stop, he asked Jarvis for her license. The bodycam footage audio begins with Radford asking if there was anything else in the vehicle. About a minute later, Jarvis gave Radford her license and Radford immediately requested Martin’s license and the registration for the vehicle. Approximately 45 seconds later, after receiving Martin’s license, Radford asked about the location of the first firearm. One minute after that, Radford asked again whether there was anything else in the vehicle which resulted in Jarvis confessing to the second firearm. Radford’s questions were not reasonably related in scope to the purpose of the stop and were instead focused on investigating unrelated criminal activity.

Those inquiries would have been lawful if they were conducted during the course of a diligently conducted stop, but that is not the case here because Radford abandoned the stop from the very beginning. To begin, when initiating the stop, Jarvis had already moved the car from the single-lane bridge. Radford’s purpose in conducting the traffic stop had seemingly been resolved. It makes little sense for Radford to then move on to proceed with the stop, let alone to prolong the stop to question about the presence of firearms.

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