All About Pretext Stops, Unduly Long Detentions and Weapons Pat Downs: What’s Legal, from a New Ruling

During a lawful pretextual traffic stop, patting down a gang member for weapons is not illegal when other factors (being in a gang area, another gang member found to be armed) provide a reasonable suspicion to believe that he may be armed. Time taken to ensure officers’ safety does not result in an unduly prolonged detention. 

• Detentions for investigation 

• Prolonged detentions 

• Pretextual traffic stops 

• Pat downs for weapons 

Pretextual traffic stops are legal. When in an area that opposing violent street gangs both claim as their territory, and after a gun has already been found on one gang member, patting down a second gang member for weapons is lawful.  

Absent the discovery of other criminal activity, prolonging a traffic stop beyond the time it would reasonably take to complete the mission of the traffic stop is an “unlawfully prolonged” detention and in violation of the Fourth Amendment.  

An officer taking the time to ensure officers’ safety during a traffic stop does not illegally prolong the traffic stop. 

San Diego Police Department officers Arreola and Vina were working with detectives from the department’s street gang unit early one September evening when they were directed by Detective Patrick from the gang unit to pull over a vehicle that was in violation of Vehicle Code § 26708(a), illegally tinted windows. Although the vehicle’s windows were in fact illegally tinted, the detective’s true interest was to investigate the vehicle’s occupants for any possible gang affiliation.  

The detective’s motives were prompted by the fact that they were in an area known by the detective to be contested gang territory claimed by both the City Heights Juniors and Eastside San Diego, both known to be criminal street gangs with a history of violence. Doing as directed, Arreola flashed his lights and activated his siren, signaling to the driver that he was to pull over and stop. The driver complied, pulling into an alleyway where he stopped and rolled down his window.  

Arreola got out of the police vehicle but held back behind a wooden utility ....