David Leon Riley, a gangster who is in the Lincoln Park Gang in San Diego, CA was involved in a rival gang shooting. The rival of Riley’s gang shot at the Lincoln Park Gang and then got into Riley’s vehicle, stole it, and drove off. Riley had his cell phone in his possession when he was apprehended. So a detective analyzed the videos and photographs of Riley making gang signs and other gang indicia that were stored on the phone to verify whether Riley was gang affiliated. On August 22, 2009, the police pulled Riley over which he was driving a different car which later they found out that he was driving on expired license registration tags. Although Riley 's driver 's license was suspended, police policy required that the car be impounded.