Cal. Penal Code § 1609

If at any time during the outpatient period or placement with a local mental health program pursuant to subdivision (b) of Section 1026.2 the prosecutor is of the opinion that the person is a danger to the health and safety of others while on that status, the prosecutor may petition the court for a hearing to determine whether the person shall be continued on that status. Upon receipt of the petition, the court shall calendar the case for further proceedings within 15 judicial days and the clerk shall notify the person, the community program director, and the attorney of record for the person of the hearing date. Upon failure of the person to appear as noticed, if a proper affidavit of service and advisement has been filed with the court, the court may issue a body attachment for such person. If, after a hearing in court conducted using the same standards used in conducting probation revocation hearings pursuant to Section 1203.2, the judge determines that the person is a danger to the health and safety of others, the court shall order that the person be confined in a state hospital or other treatment facility which has been approved by the community program director.