Administrative Services

The Administrative Services Bureau is the primary support system of the Oxnard Police Department. The bureau has 57 fulltime positions divided among four divisions.

The divisions housed within the bureau are the Records Division which is responsible for maintaining all recorded documents and evidence under the control of the Police Department; the Professional Standards Division which is responsible for hiring, training and internal affairs investigations; the Support Services Division which comprises the business office, information technology and clerical support; and the Communications Division which is responsible for police and fire dispatch and 911 calls.

The Oxnard Police Department is the only agency in Ventura County that has a combined police and fire communications center.

Contact Eric Sonstegard

Eric Sonstegard

Assistant Chief Investigative Services and Administrations Bureaus

Eric S. Sonstegard has been with the Oxnard Police Department since 1996 after spending almost three years with the Los Angeles School District Police Department. During his time in Los Angeles, he worked as a school police officer at Roosevelt High School and Hollenbeck Junior High School in the Boyle Heights neighborhood of East Los Angeles. Since coming to Oxnard, he served as a patrol officer, reserve field training officer, bike team member, and beat coordinator. From 1998 to 2001, Eric worked as a K-9 Handler with his PSD "Argos." As a team, the two of them won over twenty (20) awards at regional K-9 competitions.

In 2003, he was promoted to the rank of Sergeant and served as the supervisor of the Oxnard Violent Crimes Task Force (OVCTF), a multi-jurisdictional F.B.I. Safe Streets Task Force that combatted gang violence with the assistance of federal resources. In January of 2006, Eric transferred to the Professional Standards Division where he served as the Department's Training Sergeant. In November of 2006, he was promoted to the rank of Commander where he managed the Professional Standards Division. In May of 2011, he transferred to the Special Operations Division where he led the Special Enforcement Unit/S.W.A.T. Team, K-9 Unit, Firearms Unit, Defensive Tactics Unit, and Hostage Negotiations Team. In June of 2014, he assumed the role of Investigations Commander where he led six (6) Detective Units, the Crime Analysis Unit, and the C.S.I. Detail. Eric played an instrumental role in the development of the Department's Cultural Proficiency Program and has served as the lead instructor on the topic to over three-hundred (300) employees. Because of these efforts, he was awarded the Chief's Award of Excellence in 2013.

In December of 2014, Eric assumed the role of Interim Assistant Police Chief as the city and police department went through a leadership transition. In November of 2015, he was promoted to the rank of Assistant Police Chief. Eric currently oversees the Investigative Services and Administrative Services Bureaus.

He holds a B.S. degree in Administration of Justice from California Lutheran University and a Master's degree in Public Administration from California State University, Northridge. He is a graduate of the Sherman Block Supervisory Leadership Institute Class 211, P.O.S.T. Management Course, and P.O.S.T. Executive Development Course. In the summer of 2011, he attended the 246th session of the F.B.I. National Academy in Quantico, Virginia and has served as a youth counselor at the F.B.I.N.A.A Youth Leadership Program at Quantico. He was born and raised in Ventura County and has three children with his wife, Carrie, who is a kindergarten teacher. He is a board member of the Oxnard/Port Hueneme Salvation Army Corps, a member of the Oxnard Sunrise Rotary Club, and is a longtime supporter of the Oxnard P.A.L. program and the Mixteco/Indigena Community Organizing Project (MICOP). He was recently elected as the 4th Vice-President of the F.B.I. National Academy Associates (FBINAA) California Chapter.


Contact Greg Hebert

Greg Hebert

Professional Standards Commander

Commander Greg Hebert began his career with the Oxnard Police Department in 1993, after receiving his Bachelor of Science Degree in Criminal Justice from California State University, Sacramento. During his time in the Field Services Bureau, he served as a Field Training Officer, Bicycle Team Member, Mounted Unit Member, Motorcycle Officer, and as a Beat Coordinator. While in the Investigations Services Bureau, he worked as a Detective in the Burglary, Robbery, and Narcotics Units. He later returned to the Investigative Services Bureau as the Narcotics Unit Sergeant. He has also been assigned to the Administrative Services Bureau as an Internal Affairs Sergeant and has served as the Department’s Chaplain Coordinator.
Commander Hebert received an award from Mothers Against Drunk Driving in 1996 for leading the Department in DUI arrests. He was nominated for the “Officer of the Year” award in 2006. Commander Hebert served as an Oxnard Peace Officers’ Association Board Member for 10 years, serving in the positions of President and Treasurer.
As the Commander assigned to the Professional Standards Division, he oversees the Internal Affairs Unit, the Audit and Inspections Unit, and the Training and Hiring Unit. He is also responsible for the Department’s Trauma Support Team.


Contact Mary Diamond

Mary Diamond

Police Finance & Grants Manager

Mary began working with the City of Oxnard Finance Department in 2005. In 2008 she promoted to the Oxnard Police Department where she manages the Budget, Grants and the Business Office. She has a Bachelor of Science in Business Degree from the University of Missouri – St. Louis and is a Certified Public Accountant.


Contact Sylvia Paniagua

Sylvia Paniagua

Records Manager

Sylvia Paniagua joined the Oxnard Police Department in 1982. She was promoted to Administrative Services Supervisor in 1986, overseeing the word processing and detective reception areas. In 1996 she was promoted to Police Records Manager. Sylvia currently manages the department’s Property and Evidence Unit and Records Unit. Sylvia holds a Bachelor’s Degree in Business Administration from the University of LaVerne and a Master’s Degree in Public Administration from California State University Northridge. Sylvia is also an active member of Soroptimist International of Oxnard. Sylvia is a past recipient of the Knights of Columbus Public Safety Night award.


Administration Services Divisions

Communications Division

» 911 Communications Center
» Training Coordinator

Professional Standards Division

» Internal Affairs Unit
» Specials Services Unit
» Training Unit

Support Services Division

» Technology Services Unit
» Financial Services Unit

Records & Property Division

» Property and Evidence Unit
» Records Unit

Policy Manual

» 2013 OPD Policy Manual