The Southwest Riverside County Sheriff and Fire/CAL FIRE, Western County CHP Departments are dispatched by the Riverside County Sheriff’s Department Central Dispatch in Riverside, California, ... See more United States, providing a rapid response by fire, EMS and law enforcement departments to incidents and control of a wide-range of emergency situations, including the Temecula area Sheriff, Countywide Fire, Murrieta Police and Fire, and California Highway Patrol from Oceanside to Lake Elsinore.