Reserve Deputy Sheriff

The duty assignments include: Corrections, Investigations, Patrol, Special Enforcement, as well as Special Events such as: parades, 10K races, bicycle races, political functions, safety clinics and other community oriented events.

A.R.C. Team (Amateur Radio)

Provide extended radio communications during disasters and special events

Search & Rescue / Explorer S.A.R.

The Contra Costa County Sheriff's Search and Rescue Team is made up entirely of volunteers who work through the Contra Costa County Sheriff's Department. The team conducts searches for missing persons throughout Contra Costa County and assists other search teams during mutual aid call outs. Requests for searches must be initiated through the sheriff's office or other law enforcement agency.

Air Squadron

Fly missions that assist the many units of the Sheriff.

Air Unit

Be a crew member on the Sheriff’s Helicopter S.T.A.R.R.1

Dive Team Volunteer

Join one of the top Dive/Rescue units in the State.

Rural Patrol Unit

Offroad Enforcement Utilize department A.T.V.'s to patrol the vast open spaces in our county.

Mounted Patrol Unit

Mount up and patrol the vast open spaces in Contra Costa County.

Traffic Safety Motor Unit

The Traffic Safety Motor Unit provides traffic and crowd control at the many special functions throughout the county.

Cadet (Explorer Post 2406)

The Sheriff's Cadet Unit is a volunteer law enforcement explorer post whose primary purpose is to give college, high school and junior high school students a chance to begin training themselves for a career in law enforcement and community service.

Marine Patrol

Assist boaters and Patrol the Delta