California Welfare And Institutions Code Section 4107.1
Consistent with the authority of the State Department of Mental Health to maintain and operate state hospitals under its jurisdiction, the State Department of Mental Health shall provide internal security for the patient population at Patton State Hospital. The State Department of Mental Health may employ hospital police at Patton State Hospital for this purpose. This section is not intended to increase or decrease the duties and responsibilities of the Department of Corrections at Patton State Hospital.