California sheriff oversight

Mariposa County

Jeremy Briese, Sheriff 104 FTE (2022) $12.2M budget (FY 2023-24) $713/resident

status

No public Board of Supervisors record

Searches of the Mariposa County Board of Supervisors, the Archived Grand Jury Reports page, and the 2022-2023 Grand Jury Final Report found no agenda items, resolutions, or public statements from the BOS relating to AB 1185, civilian sheriff oversight, or an inspector general.

Source: Grand Jury Reports | Mariposa County, CA

Staffing breakdown source: census_cog_e_2022 2022
Sworn officers 45 (43%)
Custody officers 41 (39%)
Civilian staff 18 (17%)
Total 104
Jail facilities source: BSCC Jail Profile Survey 2025
Facility Beds
Mariposa Co. Adult Det. Fac. 58

Civil Grand Jury investigations (4)

The Mariposa County Civil Grand Jury is required by Penal Code §919(b) to inquire annually into the condition of county jails, which the sheriff operates. Reports below investigate the sheriff's office, jails, deaths in custody, deputy conduct, or related matters. Sourced from civilgrandjury.org/mariposa.

Statewide oversight reports on the sheriff or jails (4)

Reports from California state-level oversight bodies — auditors, inspectors, boards, and commissions — that mention Mariposa County in the context of the sheriff's office, jails, custody, deputies, or use-of-force.