Mounted Posse

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Services provided by the Riverside County Sheriff's Department

To view more information about becoming a Posse Member, visit the Riverside County Sheriff's Mounted Posse web page. 

The organization of a “volunteer effort” to aid the Sheriff of a county in America became formally known as a posse back to the early 1600’s. The name “posse” is derived from the familiar Latin term “posse comitatus” which translates to a “volunteer effort of the county.”

Though much has changed over the 300+ years since the formation of the first American posses, the origin of volunteerism to benefit the citizens of the county still remains the cornerstone of even today’s dedicated posses.