What should I do if I receive a "Courtesy Letter" or a "Notice to Comply"? The Sheriff's Records Unit has ten days to respond to all requests.We accept fees paid in cash - exact change only or check. The hiring standards are rigorous and up to 100 applicants may be screened to fill one vacant position. Antioch Police Records Unit Records and Counter Hours Monday – Friday am-pm. Closed Holidays and Lunch am-am. The Contra Costa County Office of the Sheriff is seeking men and women interested in an exciting and challenging career in law enforcement. Using the Online Citizen Reporting System allows you to submit a report immediately and print a copy of the report for free. Want to make a complaint or commendation for one of our police officers or office staff? Contra Costa College (CCC).