The Orange County Sheriff's Department South Operations Division provides law enforcement services to more than 566,000 residents of South Orange County. The 10 contract cities of Aliso Viejo, Dana Point, Laguna Hills, Laguna Niguel, Laguna Woods, Lake Forest, Mission Viejo, Rancho Santa Margarita, San Clemente, San Juan Capistrano, and the unincorporated areas of Trabuco Canyon, Coto De Caza, Ladera Ranch, Wagon Wheel, and Las Flores are all within the South Operations area of responsibility. The division deploys approximately 140 patrol cars during each 24 hour period to provide law enforcement services. There are approximately 471 staff members, of which 371 are deputy sheriffs.
The Los Angeles County Sheriff's Department substation provides police protection to Marina del Rey residents and operates a boat patrol. The station formerly was the Marina del Rey Harbor Patrol, but the Sheriff's Department took over operations in 1984. The substation has a jail and a back dock is home to offshore and close-to-shore patrol boats. The station is also responsible for patrol in three unincorporated areas that stretch for about a mile inland.
The Deputy Sheriffs Association of Alameda County – whose administrative offices are located on Owens Dr. – represents Alameda County law enforcement in order to enhance wages, benefits and working conditions of the membership. It supports Alameda County communities through its charitable giving programs, and through the promotion of public safety initiatives.