Gonzalez

I. Factual background and procedural posture

Arizona DPS Officer Duckett stopped a pickup truck on a state highway in a remote desert area frequently used as a nar- cotics trafficking corridor. The driver and a passenger fled after the stop, abandoning the vehicle and its contents. Con- cealed within the bed of the truck were thirty bales of mari- juana. When Officer Duckett activated his emergency lights, the dashboard-mounted video camera in his patrol car auto- matically initiated recording. Soon after Officer Duckett stopped the vehicle, three Border Patrol agents, dressed in UNITED STATES v. GONZALEZ 7083 civilian clothing and driving a personal vehicle, also stopped, identified themselves by showing their badges and guns, and offered assistance in the chase after the truck’s occupants. Two agents pursued the occupants immediately. Officer Duckett then joined the chase with his service canine, leaving the third Border Patrol agent, Agent Rogers, behind to protect the vehicle and marijuana after performing a visual check to verify Rogers’ credentials and his possession of a firearm. Gonzalez then arrived in uniform driving a marked Border Patrol vehicle and…