As the elected public prosecutor for Contra Costa County, I am pleased to provide this site for the residents of our county to learn more about their District Attorney's Office, and how they can communicate more effectively with us.

--Robert J. Kochly

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