About Sheriff’s Department

About the Sheriff’s Department

The first Sheriff of Blaine County was Issac A. Neibaur who served from 1912 to 1916. James Buckley followed from 1916 to 1920, J.Q Laswell 1920-1924, G.W. Fleming 1924-1934, C.B. Reser 1934 to 1949, E.T. Larkin was appointed after Reser’s death 1949-1951, Dan Hay 1951-1963, John A. Garland 1963-1967, Murdo MacLean 1967-1977, Robert G. Flynn appointed after MacLean’s death 1977-1978, Homer Duffner 1978-1980, Charles Hay 1980-1986, Glenn A. Huestis 1986-1991, John W. Harrington 1991-1995, Max Maddox appointed in 1996, Pete Paulsen 1996-1999, Glenn A. Huestis 1999 – current

Gone But Not Forgotten:

Josh Rutherford EOW 5-29-2003 Deputy Joshua Rutherford was shot and killed when he and another deputy responded to a domestic disturbance on U.S. Hwy 2 in Harlem, Montana.

Deputy Rutherford had served with the Blaine County Sheriff’s Office for 4 years.

Pat Pyette EOW 12-14-2011 Undersheriff Pat Pyette was struck and killed by a vehicle while directing traffic around the scene of a disabled truck on U.S. Highway 2, between Chinook and Zurich.

Undersheriff Pyette had served with the Blaine County Sheriff’s Office for 10 years.


Contact Us

Blaine County Sheriff’s Office
420 Ohio St.
P.O. Box 8
Chinook, MT 59523

Department Phone Directory:

Main Number: 406-357-3260
SVOR Department: 406-357-3903
Civil Department: 406-357-3903
Dispatch: 406-357-3260
Main Fax: 406-357-2824


Glenn Huestis


Coming Soon!

Frank Billmayer

Under Sheriff

Under Sheriff Frank Billmayer II joined the BCSO on June 15, 2009. He is the BCSO firearms instructor, Deputy Coroner and Internet Crimes Against Children (ICAC) investigator additionally he has extensive training in death and crime scene investigations. He has a Bachelor of Science degree in Business Administration from the University of Montana and is United States Marine Corps veteran. He is a 5th generation Blaine County resident and he resides in Chinook with his wife and two sons.

John Colby


Lt. John Colby is currently the Lieutenant of the Blaine County Sheriff's Department. John Colby started his career in Law Enforcement with the Blaine County Sheriff's Department in 1996 as a Detention Officer/Dispatcher. In 1998 he began working with the Harlem Police Department where he served as a patrolman and later as the Chief of Police. In 2001 Harlem consolidated its law enforcement with the Blaine County Sheriff's Department and John Colby remained as a Deputy Sheriff. In 2002 John accepted a job with the Williston Police Department and served as a patrolman and later as a senior patrolman. In 2007 John left the Williston Police Department and went to work for Dyn-Corp in Konduz Afghanistan training the Afghanistan Nation Police. In March 2010 John was returned to Chinook and accepted a position as a Deputy Sheriff with the Blaine County Sheriff's Department. John was promoted to the Lieutenant of the Blaine County Sheriff's Department in 2012. John is one of the Taser Instructor's, Field Training Officer, K9 Handler, and was recently assigned to the Tri-Agency Drug Task Force. John and his wife Dawn have two children JJ, and Aspyn.

Chris Adair


Deputy Chris Adair has been with the Blaine County Sheriff’s Office since August of 2012. Since then he has become the Field Training Officer, Firearms Instructor, Armorer, Deputy Coroner, and the Senior Operator for Blaine County’s breath alcohol testing equipment. He also is the DUI Task Force Coordinator. He lives in Chinook with his wife and 2 sons. Previous to living here they were residents of Flathead County.

Jon Ritterbach


Deputy Jon Ritterbach and his family moved to Chinook in October of 2011. He began my career with the Blaine County Sheriff’s Office in August of 2013. He enjoys working with the public and other departments. In addition to his patrol duties he is also the Department Evidence Technician.

Jim Beemer


Deputy Jim Beemer has been with the Sheriff's Office since 2013. Prior to that he worked as a Detention Officer in Hill County. His specialized training includes Active Shooter Response and Defensive Tactics. Jim is very happy to be able to live and work in the communities of Blaine County and is looking forward to serving all of Blaine County's citizens.

Billy Minnis


Deputy Billy Minnis joined the Sheriff's Office in August of 2014. Prior to coming to Blaine County he served in the Army as an Infantryman and Logistical Specialist. In 2010 he went to work at the Hill County Detention Center. Since coming to the Sheriff's Office he has gone to many trainings to include Desert Snow, ARIDE, (Advanced Roadside Impaired Driving Enforcement), Basic Drug and Gang Identification and he is a Deputy Coroner. He lives in Chinook with his wife, Kylee who is a Volunteer Firefighter, they enjoy working and living in the community.


K9 Deputy

Robo joined the Blaine County Sheriff's Office in October of 2013. He resides with his handler Lt. John Colby.