Work HistorDan Mattosy

Dan Mattos has been employed as a sworn full time peace officer since June 19, 1978, beginning his police career with the Kingman, Arizona Police Department (PD). Dan served with Kingman PD for over 14 years until he moved to Idaho in October of 1992 to take a position with the Sandpoint Police Department. Dan served with Sandpoint PD from October 1992 until February 1995, when he began his career with the Kootenai County Sheriff’s Office (KCSO).

Patrol & Investigations

During his police career, Dan spent several years working uniform patrol assignments. Dan also spent extensive time working in investigations and narcotics, worked as a motor officer and as a mounted officer, and served as a counselor at the Arizona Law Enforcement Training Academy. Dan worked as a Sergeant in Patrol and Investigations while working for both Kingman PD and at KCSO, functioned as the supervisor of the Administrative Services Division in Kingman PD, and has worked as a Lieutenant in the Jail Bureau and Operations Bureau of KCSO.


Dan was promoted to Captain via a competitive testing process in March 2008 and was appointed to the rank of Major in September 2009. During his tenure, Dan has commanded the Operations Bureau at the Sheriff’s Office, overseeing the overall police field services for the Department. In July of 2014, Dan was appointed as Undersheriff to Sheriff Wolfinger. Dan is a graduate of the FBI National Academy, class 239.