Sheriff's Office - Administration

Management Team


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Sheriff John R. Robertson

Sheriff John Robertson started his law enforcement career with the San Mateo, (California) Police Department in 1981. He moved to the Napa Sheriff's Office in 1991, where he worked his way through the ranks and was appointed Sheriff by the Napa County Board of Supervisors, on April 6th, 2012. John holds a Bachelor’s Degree in Criminal Justice from San Diego State University and is a graduate of the Sherman Block Supervisory Leadership Academy, Leadership Napa Valley and the Senior Management Institute for Police (SMIP - Boston, Mass). He is a member of the California State Sheriff's Association, California Peace Officers Association, Police Executive Research Forum and Leadership Napa Valley. 

Sheriff Robertson is the Sheriff-Coroner and premier law enforcement official in Napa County. The current Sheriff's Office staff consists of one hundred eleven sworn deputy positions and thirty six support staff positions.


Undersheriff Jean Donaldson

Undersheriff Jean Donaldson began working for the Napa Sheriff’s Office in 1988. He has been assigned to Patrol, Investigations, Civil/Coroner and the Napa Special Investigations Bureau. Jean holds a Bachelor’s Degree in Criminal Justice Administration from California State University at Sacramento and is a graduate of the FBI National Academy. He coaches youth sports, including the Sheriff’s Activities League wrestling team. 

As Undersheriff, Jean recommends policy to the Sheriff and oversees the daily operation of Sheriff's Office.  


Captain Tracey Stuart

Captain Tracey Stuart began her career as a Reserve Peace Officer with the Calistoga Police Department. In 1989, she became a full-time peace officer with Calistoga and worked there for six more years. In 1995, Tracey began working for the Napa County Sheriff’s Office. Tracey has a Bachelor’s Degree in Management and is a graduate of the Sherman Supervisory Leadership Academy and the Senior Management Institute for Police.

In 2013, Tracey became the American Canyon Police Chief. She is responsible for the management, direction, and control of operational and administrative aspects of the law enforcement in the City of American Canyon. Her current staff includes four sergeants, nineteen police officers, two police technicians, and an administrative clerk.


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Captain Steve Blower

Captain Steve Blower started his law enforcement career in 1988 at the 9th Napa College Basic Police Academy using the Veterans Educational Assistance Program, after he recieved an Honorable Discharge from the US Army. He was hired by the Napa Sheriff’s Office in January of 1989. Steve worked on Patrol in unincorporated American Canyon and was the first Deputy assigned to the City of American Canyon after incorporation in 1992. He was a member of the first gang task force in Napa County, the Investigations Division and the Napa Special Investigations Bureau. After being promoted to Sergeant in 1999 he worked in the Napa Special Investigations Bureau, Patrol Bureau, Coroner’s Office, Civil Process Unit, Transportation Unit, Court Services, and Investigations Bureau's. In 2009, Steve was promoted to Lieutenant and assigned to the Napa County Department of Corrections and Court Services. Steve is a graduate of the POST Sherman Block Supervisory Leadership Institute.

Steve is currently assigned as the Captain of the Services Division that includes the Coroner's Office, Court Services, Civil Process, Prisoner Transportation, Corrections, Technical Services, Record's, and Fleet/Building management.

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Captain Keith Behlmer

Captain Keith Behlmer attained a Bachelor’s degree in Public Justice, from The State University of New York at Oswego in 1981. He started his law enforcement career in 1986 when he was hired by the Napa County Sheriff’s Department and attended the Santa Rosa Police Academy. He has worked as a police officer for the City of Richmond and has had several positions within the Sheriff’s Department including, weaponless defense instructor, firearms instructor, K9 officer, narcotics investigator and SWAT. Keith was promoted to Sergeant in 2004 and has been assigned to American Canyon, NSIB and The Town of Yountville.

Keith is currently assigned as the Captain of the Operations Division that includes Patrol and Investigations. 


Lieutenant Thomas Commander

Lieutenant Tom Commander attained a Bachelor’s Degree in Public Justice from the State University of New York (Oswego) in 1989 and relocated from New York to California. He began his career with the Napa Sheriff’s Office in 1990, and worked as a police officer for the City of Vallejo and in several Sheriff’s Office assignments before being promoted to sergeant in 1999. Tom implemented and acted as the coordinator of the first four Napa Sheriff Citizen’s Academy classes. Tom was promoted to Lieutenant in 2005, attended the Santa Clara County Leadership Program in 2002, and graduated from the West Point Leadership Program (sponsored by the Los Angeles Police Department) in 2008. Tom is a graduate of Leadership Napa Valley, (class 26).  In May, 2017 Tom attained an Executive Master's degree in Public Administration from the  University of South Dakota.

Tom is currently assigned to the Services Division as the law enforcement liaison for the Napa County Department of Corrections. Tom participates as a member of the Department of Correction’s Administrative staff and assists with recruitment and hiring of Correctional Officers. He also manages internal affairs investigations, is the current training manager and custodian of records, and assists the Department of Corrections with all law enforcement related matters. Tom also manages the Sheriff’s Court Security and Transportation Bureaus.  



Lieutenant Chris Carlisle

Lieutenant Chris Carlisle was hired as a Deputy Sheriff for Lake County in 1994.  He continued to work there as a Deputy Sheriff until 2000 when he was hired by Napa County as a Deputy Sheriff.  He worked numerous assignments including Patrol, Bailiff, Field Training Officer, POPP Unit, Coroner Investigator, Detective and Sergeant for the Marine Patrol unit.  He works as a liaison between County Mental Health and Crisis to address best practices dealing with citizens in Crisis and related training for Department personnel.   He has an AS Degree from Butte Junior College and completed his upper graduate in Business Administration at PUC in Angwin.   

Chris is currently assigned to the Operation Division and manages the Patrol bureau.



Lieutenant Jon Crawford

Lieutenant Jon Crawford was raised in the Napa Valley, and after graduating from Justin-Siena High School attended CSU, Chico where he obtained a Bachelor’s Degree in Public Administration. In 1994 Jon began his law enforcement career as a deputy sheriff for the Shasta County Sheriff’s Office.  He later worked for the CSU, Chico Police Department as a police officer and in 1998 returned home when he was hired as a deputy sheriff at the Napa County Sheriff’s Office.  As a Deputy  Sheriff Jon worked in patrol, the City of American Canyon, Court Security and the Investigations Bureau.  Jon was promoted to Sergeant in 2007 and served in a supervisory capacity in the Community Services Bureau, Investigations, Patrol and in the Town of Yountville.  Jon was promoted to Lieutenant in 2016, and is a graduate of the Napa County Management Academy.

Jon is currently assigned to the  Services Division and manages the Coroner’s Bureau, the Civil Process Bureau, the Records Bureau and Technological Services.



Lieutenant Cullen Dodd

Lieutenant Cullen Dodd was hired January of 2002.  He spent four years in the United States Marine Corps infantry prior to becoming a Napa County Sheriff’s Deputy.  In May of 2013 he was promoted to Sergeant.  He spent two and a half years as a Patrol Sergeant and one year as the Detective Sergeant.  In December of 2016 he was promoted to Lieutenant.  He is currently assigned to Services Division and manages hiring, recruitment and training. 




Lieutenant Oscar Ortiz

Lt. Ortiz started his career with the Napa County Sheriff’s Office in 1996.  He holds a Bachelor of Science degree in Criminal Justice Management, a California Peace Officers Standards and Training Management certificate, and is a graduate of the POST Sherman Block Leadership Institute.  Lt. Ortiz volunteers daily at the Napa Sheriff’s Activities League coaching youth boxers.  Since his promotion to Lieutenant in 2013, Lt. Ortiz has been in command of the Investigations Bureau.  In his current assignment, he oversees a team of 7 detectives and 1 sergeant, in addition the crime lab and property room.  Lt. Ortiz also oversees the department’s Field Training Program and is an instructor at the local police academy.