Astor, a military working dog, sits when he finds narcotics to alert Sgt. Jean Villanueva, a military working dog handler and trainer with Marine Corps Air Station Miramar Provost Marshal’s Office and an Anaheim, Calif., native, during narcotics detection training aboard MCAS Miramar, Calif., Oct. 19. PMO trains their dogs to detect a variety of narcotics, including marijuana, cocaine and methamphetamines.