Using the Online Citizen Reporting System allows you to submit a report immediately and print a copy of the report for free. A consumer complaint form must be completed and submitted to the Consumer Protection Unit.If you have a complaint against a police officer or sheriff's deputy, you should first direct your complaint to the local law enforcement agency. Civil Rights Litigation. We are here to help you with wrongful or false arrests. Our California false arrest lawyers can advise on your case and how to best proceed. Contact the Police Department: Most police departments have a formal process for filing complaints. In California, filing a false police report carries the potential for fines and even jail time. It's important to understand what constitutes this crime. Afterward, the person can visit the Antioch Police Department, Front Counter, to fill out a request form with a valid CA Driver's License or ID Card.