About YCSO Reserves

The Sheriff's Reserve is a group of sworn, part-time, volunteer citizens who assist the Sheriff in supplementing full-time sworn deputies, in performing the day-to-day delivery of law enforcement services and in emergencies.

Reserve Deputies are commissioned only by the Sheriff and they are directly responsible to the Sheriff through a full-time sworn deputy sheriff who will act as the Sheriff's Reserve Coordinator.

Reserve Deputies have peace officer powers and authority to arrest only when authorized to be on duty and perform these functions as a representative of the Sheriff.

To maintain the status of a Reserve Deputy with the Yellowstone County Sheriff's Office, a minimum of 8 hours of volunteer time per month is required. 


Qualification and Appointment
as a Reserve Deputy

A person is eligible for appointment as a Reserve Deputy who:

  • Meets the qualifications of M.C.A. 7-32-213.
  • Successfully completes the Sheriff's Office Reserve basic entry process and training.
  • Must be 18 years of age.

Volunteers and applicants for the Yellowstone County Sheriff’s Office Reserve Deputy volunteer program shall be afforded equal opportunity in all aspects of this program without regard to race, color, creed, religion, political affiliation, National origin, disability, marital status, sex or age.


Ride Along Eligibility

A person wishing to ride must have photo I.D. that is acceptable to the Commander.

Must be eighteen (18) years of age and sign the Waiver and Release of Claims and Indemnity Agreement, or if the person is under eighteen (18) years of age his parent or guardian must also sign the Waiver and Release of Claims and Indemnity Agreement. Persons under the age of eighteen (18) years of age may ride between the hours of 0800 and 2000 hours.

Civilian ride alongs are permitted once each year. Commanders have the discretion to approve or disapprove all ride alongs before they are allowed to ride.