Contra Costa DUI defense lawyer explains DUI arrests and courthouse information for drunk drivers with court appearances in Martinez, California. The project involves intensive supervision of Felony DUI offenders for two years utilizing specially trained Deputy Probation Officers.The district attorney has up to one year on misdemeanor DUIs to file charges. Using the Online Citizen Reporting System allows you to submit a report immediately and print a copy of the report for free. Petition to Seal Arrest and Related Records. CR-409-INFO, Information on How to File a Petition to Seal Arrest and Related Records. Contact Our Walnut Creek DUI Attorney Today. Have you been arrested for your first DUI in California? Our first-time DUI lawyer in Contra Costa is ready to defend you. After a person has been arrested for DUI in Contra Costa, he or she will be kept in police custody, either at the police station or in county jail.