Message from the District Attorney

A Message from Diana Becton

Welcome to the District Attorney Office's website and thank you for visiting. I want to underscore that our Office is here to serve you. We are all committed to protecting the public's safety and providing assistance to those harmed by violence. We continue to find ways to modernize our Office as we focus on the community's needs to ensure Contra Costa County remains a safe and welcoming place to live and work.


Diana Becton, District Attorney

Our Mission

The mission of the Contra Costa County District Attorney's Office is to seek justice and enhance public safety for all our residents by fairly, ethically, aggressively and efficiently prosecuting those who violate the law, and by working to prevent crime.

We hope this website will assist you by providing information about our Office and links to helpful community resources and law enforcement agencies.

  1. Felony Charges Filed Against Hayward Man for Criminal Acts During a Protest

    Martinez, California – The Contra Costa District Attorney's Office has filed a three-count felony complaint with special hate crime allegations attached to each charge against 36-year-old Christopher Khamis Victor Husary. Read more...
  2. Contra Costa DA Secures Justice for Victims in 2021 Mass Shooting in Richmond

    Martinez, CA – Contra Costa District Attorney Diana Becton today announced the conviction of Enrique Ramirez-Calmo on three counts of first-degree murder and four counts of attempted murder, along with gang and other special circumstances enhancements. Read more...
  3. Matthew Buckley Pleads No Contest to Illegal Gun Possession and Other Offenses

    Martinez, California – Today, the Contra Costa County District Attorney's Office reached a negotiated plea against 42-year-old Matthew Allen Buckley for offenses that occurred when he was a deputy with the Contra Costa County Sheriff's Office. Read more...
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