Sheriff Adam Christianson began his career in public safety, graduating from San Joaquin Delta College. He worked as a paramedic in Stanislaus County for several years including work as a flight paramedic for Medi-Flight of Northern California.
Sheriff Christianson started his law enforcement career with the Ceres Police Department. He also worked for the Modesto Police Department before joining the Sheriff’s Office in 1996. He has worked a variety of assignments including Patrol, SVOU, K9, Bailiff, Field Training Officer, Hi-Tech Crimes Detective, and Sergeant. He has supervised the K9 Unit and the Satellite Office of the Sacramento Valley Hi-Tech Crimes Task Force.
Sheriff Christianson was promoted to Lieutenant in February of 2004 and asked by then Sheriff Les Weidman to lead the Homeland Security Division. As a Lieutenant, Christianson worked with several federal, state and local agencies, developing Emergency Response Plans, dealing with domestic disaster preparedness issues and sharing information that is critical to the protection and safety of our communities. He's worked with the California Anti-Terrorism Task Force and the Joint Terrorism Task Force. He has held the positions of Administrative Lieutenant overseeing Human Resources, Training/Recruitment, Background Investigations, Internal Affairs, and Injury Management Coordination.
Sheriff Christianson served as the Commander of the K-9 Unit, Commander of the Air Support Unit and the Northwest Area Commander serving the community of Salida.
The Sheriff has a Bachelors degree in Criminal Justice Management. He is a graduate of the FBI Law Enforcement Executive Development Course, the POST Executive Development Course, West Point Leadership in Police Organizations and has an Executive Certificate from the Commission on Peace Officer Standards and Training.
Adam Christianson was sworn into office as Sheriff-Coroner on July 11, 2006, was re-elected in June 2010 and was re-elected to a 3rd term in June 2014.

Sheriff Christianson is a member of and participates in the following:
Airborne Law Enforcement Association
California Peace Officers’ Association
California State Coroners’ Association
California State Sheriffs’ Association - Board of Directors and Immediate Past President
California State Sheriffs’ Association – California State Threat Assessment Center Executive Governance Board
California State Sheriffs’ Association - Information Technology Committee
California State Sheriffs’ Association - Legislation Committee
California State Sheriffs’ Association - Political Action Committee
California State University, Stanislaus - Criminal Justice Advisory Board
California Statewide Data Sharing Task Force
California Statewide Hi-Tech Crimes Advisory Committee
California Emergency Management Agency, Statewide Interoperability Executive Committee Co-Chair
California’s Emergency Medical Services Authority - Director's Advisory Group
California’s Central Valley High Intensity Drug Trafficking Area - Executive Board
Central Valley Gang Impact Task Force
Central Valley High Intensity Drug Trafficking Area Task Force Chair
Fight Crime: Invest in Kids California - Executive Committee
Hispanic Leadership Council
Sacramento Valley Hi-Tech Crimes Task Force Steering Committee
Stanislaus County Auto Theft Task Force
Stanislaus County Drug Court Advisory Group
Stanislaus County Earl Pride Scholarship Committee
Stanislaus County Juvenile Justice Coordinating Council
Stanislaus County Law Enforcement Executives Association (2008 President)
Stanislaus County Methamphetamine Task Force
Stanislaus County Police Activities League Board Member
Stanislaus Elder Abuse Prevention Alliance
Stanislaus Regional 911 Advisory Board Member
Stanislaus Regional 911 Joint Powers Agency Commission Member
The Salvation Army Modesto Citadel Advisory Board
United States Attorney's Office, Eastern District of California - Executive Committee
United Way of Stanislaus County – Board Member