Assistant Chief and Deputy Chiefs
Assistant Chief Joshua Doberneck
Assistant Chief of Police Joshua Doberneck joined the Stockton Police Department in 1997, where
Motor Officer, and Tow Hearing Officer. Assistant Chief Doberneck was promoted to Sergeant on June 29, 2007, and was assigned as a
Patrol Sergeant and to the Professional Standards Section. Assistant Chief Doberneck was promoted to Police Lieutenant on February 1, 2013, where he was
assigned to Field Operations as a Watch Commander, the Strategic Operations Section, and also to the Professional Standards Section.
Assistant Chief Doberneck was promoted to the rank of Captain on November 1, 2020, where he commanded the Special Operations Section and the Field Operations Section.
On October 1, 2022, Josh was promoted to Assistant Chief of Police.
Assistant Chief Doberneck holds a Bachelor's and Master’s degree in Criminal Justice from California State University, Stanislaus, and is a graduate of the
FBI National Academy, Class 263.
Deputy Chief Kathryn Nance
Deputy Chief Kathryn Nance joined the Stockton Police Department in 1996. She served as a Patrol Officer and Field Training Officer. She was also
assigned to the Robbery/ Homicide Unit, Gang Violence Suppression Unit, and Crisis Negotiations Team.
Deputy Chief Nance was promoted to Sergeant on August 26, 2011, and worked in Patrol, Gang Street Enforcement Team, Community Response Team, Community Corrections Partnership Task Force and the AB109 Task Force.
Deputy Chief Nance was promoted to Police Lieutenant on December 3, 2016. As a Lieutenant, she was assigned to Field Operations and the Special Investigations Unit. She was also the Program Manager over METRO Narcotics, the Community Corrections Partnership Task Force, the FBI Task Force,
the Multi-Agency Gang Task Force, Critical Incident Investigations, and the Parole and Corrections Team (PACT).
Deputy Chief Nance promoted to the rank of Captain on August 23, 2019, and served as commander of the Special Operations Division.
On November 1, 2020, she promoted to the rank of Deputy Chief, where she currently heads up the Logistics Bureau and Fiscal Affairs Division.
Deputy Chief Nance has earned her Intermediate, Advanced, Supervisory, and Management certificates from POST. She has possessed her Master Officer certificate and graduated from the Sherman Block Supervisory Leadership Institute. Deputy Chief Nance obtained her Bachelor's Degree in Criminal Justice
from Humphreys University in Stockton.
She is a proud member of the North Stockton Rotary and is Senior Fellow with The American Leadership Forum, Great Valley Chapter.
Deputy Chief Antonio Sajor
In 2007, Deputy Chief Sajor was promoted to Sergeant where he worked in the Field Operations Division.
In 2011, Deputy Chief Sajor was promoted to Lieutenant and served as a Watch Commander, Strategic Operations Commander addressing community concerns on crime and blight, was the initial manager of the Police Chief's Community Advisory Board, and the Crisis Negotiations Team Program Manager.
In August 2014, Deputy Chief Sajor was promoted to Captain and commanded the Special Operations, Technical Services, Investigations, and Administrative Services Divisions within the Stockton Police Department.
In 2017, Deputy Chief Sajor was awarded the Center for Digital Government's “Best of California, Demonstrated Excellence in Project Management Award" for his leadership role in the successful migration of systems that run the dispatch center and records management systems of the police department.
In June 2022, Deputy Chief Sajor promoted to Deputy Chief where he commands the Logistics Bureau which includes the Administrative Services and Technical Services Division.
Deputy Chief Sajor has earned his Intermediate, Advanced, Supervisory, and Management Certificates from the California Commission on Peace Officer
Standards and Training (POST). Sajor holds a Bachelor of Science degree in Criminology from CSU Fresno (1997), and a Master's Degree in Security Studies (Homeland Security) from the Naval Postgraduate School in Monterey, CA (2015).
He is a graduate of the Sherman Block Supervisory Leadership Institute and the California P.O.S.T. Command College.He volunteers on the Principal's School Site Council for the All Saints Academy in Stockton, CA.