California Code, Penal Code - PEN § 1608

If at any time during the outpatient period, the outpatient treatment supervisor is of the opinion that the person requires extended inpatient treatment or refuses to accept further outpatient treatment and supervision, the community program director shall notify the superior court in either the county which approved outpatient status or in the county where outpatient treatment is being provided of such opinion by means of a written request for revocation of outpatient status.  The community program director shall furnish a copy of this request to the defense counsel and to the prosecutor in both counties if the request is made in the county of treatment rather than the county of commitment.

Within 15 judicial days, the court where the request was filed shall hold a hearing and shall either approve or disapprove the request for revocation of outpatient status.  If the court approves the request for revocation, the court shall order that the person be confined in a state hospital or other treatment facility approved by the community program director.  The court shall transmit a copy of its order to the community program director or a designee.  Where the county of treatment and the county of commitment differ and revocation occurs in the county of treatment, the court shall enter the name of the committing county and its case number on the order of revocation and shall send a copy of the order to the committing court and the prosecutor and defense counsel in the county of commitment.