United States v. Alfredo Landeros, 913 F.3d 862

Early morning traffic stop for speeding; Officer Baker smelled alcohol and believed two rear passengers might be underage; driver produced ID.
Front passenger Alfredo Landeros (an adult) refused officers’ repeated demands to provide identification; officers called for backup and prolonged the stop.
After Landeros exited the car, officers observed open alcohol containers and weapons on the floorboard; Landeros was handcuffed and consented to a pockets search that yielded a pipe and six bullets.
Landeros was indicted for possession of ammunition by a felon and moved to suppress the evidence and to dismiss based on alleged post-arrest abuse; district court denied both motions and he pled guilty reserving appeal rights.
Ninth Circuit evaluated whether prolonging the stop to demand a passenger’s identity—without reasonable suspicion of criminal activity—violated the Fourth Amendment and required suppression of the bullets.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether officers may extend a traffic stop to demand a passenger’s ID absent reasonable suspicion of independent criminal activity	Landeros: Officers unlawfully prolonged the stop by insisting on ID without reasonable suspicion; resulting evidence must be suppressed	Government: Officers reasonably extended the stop due to suspected underage drinking/curfew and Landeros’ refusal to ID justified further detention and arrest under Arizona law	The stop was unlawfully prolonged; officers lacked reasonable suspicion to compel ID, so the extension and resulting evidence were unconstitutional and suppressed
Whether refusal to identify can create reasonable suspicion or a new offense justifying detention	Landeros: Refusal cannot retroactively create the lawful basis for the earlier, unlawful detention	Government: Refusal supported reasonable suspicion or violated state statutes, justifying extension/arrest	Court: Under Brown and Hiibel, refusal cannot justify an order to ID when no reasonable suspicion existed initially; Arizona statutes thus did not validate the extension

Rodriguez v. United States, 135 S. Ct. 1609 (2015) (officers may not prolong a traffic stop to conduct unrelated checks absent independent reasonable suspicion)
United States v. Evans, 786 F.3d 779 (9th Cir. 2015) (post-Rodriguez application: extensions that add time to a stop require independent reasonable suspicion)
United States v. Turvin, 517 F.3d 1097 (9th Cir. 2008) (prior sensible-reasonableness standard for brief unrelated questioning; effectively overruled by Rodriguez)
Hiibel v. Sixth Judicial Dist. Court, 542 U.S. 177 (2004) (upholding a stop-and-identify statute when officer had reasonable suspicion relating to investigation)
Brown v. Texas, 443 U.S. 47 (1979) (officers may not require identification absent reasonable suspicion of criminal activity)
United States v. Montero-Camargo, 208 F.3d 1122 (9th Cir. 2000) (definition of reasonable suspicion: specific, articulable facts)
United States v. Diaz-Castaneda, 494 F.3d 1146 (9th Cir. 2007) (police may ask detained persons for identification but cannot refuse to accept a lawful refusal when no reasonable suspicion exists)