During a hearing, after the appointing authority has completed the opening statement or the presentation of evidence, the employee, without waiving his or her right to offer evidence in the event the motion is not granted, may move for a dismissal of the charges.
If it appears that the evidence presented supports the granting of the motion as to some but not all of the issues involved in the action, the board or the authorized representative shall grant the motion as to those issues and the action shall proceed as to the issues remaining. Despite the granting of the motion, no judgment shall be entered prior to a final determination of the action on the remaining issues, and shall be subject to final review and approval by the board.
Ca. Gov. Code § 19582