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Sheriff Adam Christianson

Sheriff Adam Christianson began his career in public safety, graduating from San Joaquin Delta College with a certification in Paramedicine and 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 and also worked for the Modesto Police Department before joining the Sheriff’s Department in 1996. He has worked a variety of assignments including Patrol, the Reservoir Unit, K9 handler and K9 Unit Supervisor, Bailiff, Field Training Officer, Hi-Tech Crimes Detective, Sergeant and Lieutenant.

The Sheriff has a Bachelor’s degree in Criminal Justice Management from Union Institute & University. He is also 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. Sheriff Christianson was sworn into office as Sheriff-Coroner-Public Administrator on July 11, 2006 and after being re-elected in June, 2010, was sworn into office for another four-year term on January 4, 2011. He was re-elected to a third term in office on June 3, 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 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


Lt Mick HardenbrookUndersheriff Mick Hardenbrook

Undersheriff Mick Hardenbrook was born and raised in Stanislaus County and has lived here all of his life. He began his law enforcement career in 1984 when he was hired by Sheriff Lynn Wood as a Jailer. While working in the Men’s Jail, Undersheriff Hardenbrook worked in booking, on the floors and as the tunnel deputy.

In 1987, Undersheriff Hardenbrook put himself through the police academy at Modesto Junior College. In November, 1987 he went to work at the Modesto Police Department where his father worked as a Detective. At MPD, Undersheriff Hardenbrook worked on patrol, in School Resources and with his dad in Detectives.

In 1995, while working as a School Resource Officer at Modesto High School, Undersheriff Hardenbrook learned of a Classified Administrative position at the school. He competed for the position and was hired in August of 1995. Undersheriff Hardenbrook stayed with MPD as a Level 1 Reserve Officer while working at the school. In 1998, the funding for the position was eliminated and so was the position. As a result, Undersheriff Hardenbrook decided to come back home and was hired to work patrol at the Sheriff’s Office in September, 1998.

Undersheriff Hardenbrook started on patrol and remained there as an FTO until 2003 when he was promoted to Sergeant. After about a year as the graveyard sergeant, he was re-assigned to Investigations where he supervised the Juvenile Services Unit. In June, 2005 Undersheriff Hardenbrook was again re-assigned, this time to Crimes Against Persons where he supervised the Homicide Team. His time in CAP was one of the most challenging and rewarding assignments of his career. Several high profile cases were handled by the team during this time, including the murder of California Highway Patrol Officer, Earl Scott. Undersheriff Hardenbrook considered this case an honor and privilege to handle and was very proud of the efforts of not only his team, but of all of the people who worked so hard on this case to bring the responsible to justice.

Undersheriff Hardenbrook remained in CAP until his promotion to Lieutenant in April, 2007. After a brief stint as the graveyard watch commander, he was assigned back to Investigations as the Investigations Lieutenant. In addition to Investigations, Undersheriff Hardenbrook was assigned to manage the Administrations Division.

Undersheriff Hardenbrook served as the K9 Sergeant under then Lt. Adam Christianson in 2004-2005. After his promotion to Lieutenant, Sheriff Christianson asked him to manage the K9 Team. Undersheriff Hardenbrook takes great pride in this hard working, highly visible team. The handlers and dogs are very dedicated to their work and the statistics prove it is a bad decision to run or fight when the K9 Team is on the case.

In July of 2012 Lt. Hardenbrook was promoted to Undersheriff. This position had gone unfilled for 18 months following the retirement of Undersheriff Bill Heyne. Undersheriff Hardenbrook considers this promotion to be a privilege, an honor and very humbling. The Undersheriff enjoys working with both Captain Bill Duncan and Captain Tim Beck, both of whom have been mentors for Undersheriff Hardenbrook for many years. The Undersheriff is grateful to Sheriff Christianson for having the trust, faith and confidence in him to be able to handle this promotion.

Undersheriff Hardenbrook is married to Cindy, a police dispatcher in Ripon and has 4 children. He enjoys playing on a traveling Senior Softball team and coaching a team comprised of Law Enforcement Officers from all over the state.   



Stanislaus County Sheriff's Department
Adam Christianson, Sheriff-Coroner
250 E Hackett Road
Modesto CA 95358


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Stanislaus County CaliforniaStanislaus County Sheriff's Department

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