Cal. Fish & Game Code § 856.5

(a) The department may install patrol vehicle mounted video and audio systems, commonly known as dashboard cameras, in patrol vehicles used by peace officers described in Section 856. A peace officer described in Section 856 may use the patrol vehicle mounted video and audio system to record any communications or other actions involving the officer while the officer is in uniform and acting within the scope of his or her authority.
(b) The department shall adopt a policy to establish standards regarding the activation of patrol vehicle mounted video and audio systems and the preservation and retention of recordings from patrol vehicle mounted video and audio systems, subject to the following requirements:
1. (1) Once a patrol vehicle mounted video and audio system has been activated pursuant to standards established by the department pursuant to subdivision (b), the patrol vehicle mounted video and audio system shall record the duration of an encounter.
2. (2) The department shall retain a recording from a patrol vehicle mounted video and audio system for a minimum of 90 days and a maximum of one year, except if the recording is necessary for a pending, or reasonably foreseeable civil or criminal action, or for training or administrative purposes.
3. (3) The department shall provide access to a recording from a patrol vehicle mounted video and audio system in accordance with all other provisions of law.