725 Court Street, 4th Floor
Martinez, CA 94553
Grand Jury Assistants:
Office Hours: 8:00 AM - 4:00 PM
Telephone: (925) 608-2621
Fax: (925) 608-2658
Contra Costa County’s Grand Jury consists of 19 citizens. A new Grand Jury is impaneled each year. Grand Jurors are officers of the Court, and function as an independent body under the guidance of a Superior Court Judge.
Apart from the investigations mandated by the California Penal Code, each County’s Grand Jury decides what it will investigate. Investigations may be initiated in response to letters from citizens, newspaper articles, and personal knowledge
Issues of concern and complaints may be referred to the Grand Jury for possible investigation. If you wish to submit an issue of concern or a complaint, please use the link below, “Referral/Complaint Guide and Form.”
Recruitment for the 2024-2025, Civil Grand Jury will begin in January 2024. If you are interested, email email@example.com or call (925) 608-2621. Contra Costa County citizens are encouraged to apply for service on their Grand Jury. Written applications are screened for eligibility. Judges interview potential jurors and select citizens from each supervisorial district. This process produces the list to about 30 candidates. Names are then drawn randomly by the Court.
Click here to learn more about the Civil Grand Jury
Effective January 1, 2007, rule 10.625 of the California Rules of Court mandated that the jury commissioner or designee collect certain demographic data from prospective regular grand jurors, that this information be maintained in a database, and that an annual summary be made available to the public. The demographic data collected is as follows: age range, gender, ethnicity, occupation, and how the grand juror initially became a candidate (random draw, volunteer appreciation, or nomination by judicial officer).
By clicking on a link below, the information is summarized for that fiscal year’s prospective grand jurors, followed by a separate chart that provides the same information for only that fiscal year’s sworn grand jury of 19 Contra Costa County residents.