Local News

Sierra County Sheriff’s Office Gains New Deputy

Deputy Sexton joins the Sierra County Sheriff’s Office after a 27-year career in Alameda County.

March 25, 2025

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Deputy Sexton (right) was sworn in by Sheriff Mike Fisher (left) on Monday.

Deputy Sexton (right) was sworn in by Sheriff Mike Fisher (left) on Monday.

SIERRA COUNTY — Sierra County Sheriff Mark Fisher swore in Deputy Shawn Sexton at the Sierra Valley Substation of the Sheriff’s Office on Monday, March 24th. Deputy Sexton was previously a Division Commander for the Law Enforcement Services Division of the Alameda County Sheriff’s Office. He served 27 years with Alameda County, having started as a Sheriff’s Recruit in 1994, before beginning a short retirement in 2021.

“I was blessed with an amazing and rewarding 27-year career with the Alameda County Sheriff’s Office, where I truly enjoyed serving the citizens of Alameda County. After a few years of retirement, I felt the pull of the ‘calling’ calling me back into law enforcement, where I can once again serve the community. I am excited and honored to work with the fine men and women of the Sierra County Sheriff’s Office. I look forward to meeting the members of this welcoming community, as well as sharing my knowledge and experience with the Sheriff’s Office. I am proud to be a part of my new agency with its rich history and endeavor to serve it with honor, integrity, and professionalism,” says Sexton.

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Fisher congratulates Deputy Sexton after his swearing-in.

Fisher congratulates Deputy Sexton after his swearing-in.

Deputy Sexton has experience as Unit Commander for Alameda County’s Crime Lab and Coroner’s Bureau, where he led forensic investigations and death determinations. He also served as Unit Commander for the Airport and Marine Patrol Police Services, overseeing security at Oakland International Airport and marine operations at the Port of Oakland. Later, as Division Commander, he managed the Bay Area Urban Area Security Initiative (BAUASI) Regional Training and Exercise Program, enhancing terrorism preparedness across 12 counties, and led both the Countywide Services and Law Enforcement Services Divisions.

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