It shall be the policy of the Internal Affairs Unit to receive allegations from members of the public in a courteous and professional manner. Investigations shall be appropriately documented, promptly investigated, and conducted in a timely, legal, and ethical manner. The Internal Affairs Unit plays a crucial role in making the operations of the Antioch Police Department more transparent and accountable to the community we serve. A positive relationship between the police and the public we serve, fostered by confidence and trust is essential to effective law enforcement. The Internal Affairs Unit shall demonstrate sincere responsiveness to concerns of the public, and they will inform members of the public that their allegations or concerns will be taken seriously.

• Completed complaint forms can either be mailed or dropped off at the Antioch Police Department, 300 L Street, Antioch CA 94509.
• You will be provided with a copy of your original complaint form.
• Your complaint will be sent to the Internal Affairs Lieutenant, who will fully, thoroughly, and promptly investigate.
• You will be contacted by the assigned investigator, to set up a meeting; this is to further investigate the details of your complaint.
• This meeting will be in person at the police station unless other arrangements have been made.
• You will be notified in writing of the outcome of the investigation.
• If the investigation results in an officer being charged with a violation of departmental rules and regulations or policies and procedures, you may be asked to testify in a departmental hearing.
• If the investigation shows that the complaint is unfounded or not sustained, or that the officer acted properly, the matter will be considered closed.