Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
Martinez, California, in Contra Costa County, has about 37,000 residents (2024 Census Bureau estimate). Every warrant for Martinez comes from a judge of the Superior Court of California, County of Contra Costa, is served by whichever agency finds the person, and is recorded in the court file of the case it was issued in. This guide says who issues and serves warrants here, where a person arrested on one is held, how to check for one and how one is cleared.
This guide covers who issues warrants, who serves warrants, after a warrant arrest, checking for a warrant, clearing a warrant, directory links and common questions.
Related guides: Martinez public records, Contra Costa County warrants, Martinez arrest records, Martinez inmate search, Martinez criminal records, Martinez court records, California arrest records and California inmate search.
Who Issues Warrants in Martinez
In California an arrest warrant is signed by a judge. For Martinez that means the Superior Court of California, County of Contra Costa, which hears every civil, criminal, family, probate, traffic and juvenile case.
When a defendant misses a court date the judge issues a bench warrant, and either kind of warrant lives in the court file of the case, kept by the Superior Court clerk.
The court records page SearchSystems verified for the county is at contracosta.courts.ca.gov/online-services/records (page title: Records | Superior Court of California | County of Contra Costa), 725 Court Street, Room 103 Martinez, CA 94553, which answered when SearchSystems opened it on September 23, 2026.
California has no single public index of every trial court case; each court's records are looked up through that court.
Who Serves Warrants in Martinez
The Contra Costa County Sheriff's Office and the agency that reports for Martinez (filed by the FBI as Martinez Police Department) serve warrants in and around Martinez.
The FBI's agency list also places two other agencies, one campus police department and one state police unit in Contra Costa County (the arrest records guide names each one); each serves warrants on its own ground.
A warrant issued in Contra Costa County is good anywhere in California, so it is served by whichever agency finds the person, in a traffic stop as often as at the door.
Together, the 21 agencies in Contra Costa County with all twelve months of 2025 on file reported 17,288 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Martinez arrest records.
Where a Person Arrested on a Warrant from Martinez Is Held
A person arrested on a warrant and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Contra Costa County Sheriff's Office, held about 940 people on an average day in 2025 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at cocosheriff.org/how-do-i/inmate-information. The Martinez inmate search guide covers the jail in full.
A person arrested in Martinez on a warrant from another county is held at the same jail until that county takes custody.
How to Check for a Warrant in Martinez
The places to check for a warrant from Martinez:
- The court file of the case, through the Superior Court clerk, since a warrant is recorded in the case it was issued in.
- The District Attorney, phone (925) 957-8602, which can say whether charges were filed; a warrant on a complaint follows the filing.
- The custody page of the Contra Costa County Sheriff's Office at cocosheriff.org/how-do-i/inmate-information, which shows people already arrested and booked, not open warrants.
Not one of the Contra Costa County pages SearchSystems verified (the sheriff's, the court's, the prosecutor's and the records request page) is a list of open warrants, so a check means asking the court or the prosecutor about a case by name.
The statewide criminal history kept by the California Department of Justice is not open to the public in California, so it is not a route to a warrant check on someone else.
Clearing a Warrant from Martinez
Only the judge who issued a warrant can recall it. For a case from Martinez that means appearing before the Superior Court of California, County of Contra Costa, with the case put back on the calendar through the Superior Court clerk.
A lawyer can often arrange the appearance in advance. The District Attorney's page SearchSystems verified is at contracosta.ca.gov, phone (925) 957-8602.
More Official Wanted and Warrant Pages for Contra Costa County
The SearchSystems directory, online since 1997, lists the official pages for Contra Costa County and California. These wanted and warrant pages from its Contra Costa County listing were opened again on October 2, 2026 and each one still answers:
- California's Most Wanted Fugitives (oag.ca.gov)
Frequently Asked Questions
Can I check for a warrant online in Martinez?
Not from the Contra Costa County pages SearchSystems verified; none of them is a warrant list. The court file is the record of a warrant: ask the Superior Court clerk.
Who serves warrants in Martinez?
The agency that reports for Martinez inside the city and the Contra Costa County Sheriff's Office outside it, or whichever agency finds the person; a California warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Martinez held?
At the county jail, run by the Contra Costa County Sheriff's Office, if kept in custody.
How is a warrant from Martinez cleared?
By appearing before the court that issued it; the judge recalls the warrant in court. The case is put back on the calendar through the Superior Court clerk.
Is this the official Martinez website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.