Cal. Welf. and Inst. Code § 1800.5
Notwithstanding any other provision of law, the Board of Parole Hearings may request the Director of the Division of Juvenile Justice to review any case in which the Division of Juvenile Facilities has not made a request to the prosecuting attorney pursuant to Section 1800 and the board finds that the ward would be physically dangerous to the public because of the ward's mental or physical deficiency, disorder, or abnormality that causes the person to have serious difficulty controlling his or her dangerous behavior. Upon the board's request, a mental health professional designated by the director shall review the case and thereafter may affirm the finding or order additional assessment of the ward. If, after review, the mental health designee affirms the initial finding, concludes that a subsequent assessment does not demonstrate that a ward is subject to extended detention pursuant to Section 1800, or fails to respond to a request from the board within the timeframe mandated by this section, the board thereafter may request the prosecuting attorney to petition the committing court for an order directing that the person remain subject to the control of the division pursuant to Section 1800 if the board continues to find that the ward would be physically dangerous to the public because of the ward's mental or physical deficiency, disorder, or abnormality that causes the person to have serious difficulty controlling his or her dangerous behavior. The board's request to the prosecuting attorney shall be accompanied by a copy of the ward's file and any documentation upon which the board bases its opinion, and shall include any documentation of the division's review and recommendations made pursuant to this section. Any request for review pursuant to this section shall be submitted to the director not less than 120 days before the date of final discharge, and the review shall be completed and transmitted to the board not more than 15 days after the request has been received.
Ca. Welf. and Inst. Code § 1800.5