California Code, Welfare and Institutions Code - WIC § 602.3

(a) Notwithstanding any other law and pursuant to the provisions of this section, the juvenile court shall commit any minor adjudicated to be a ward of the court for the personal use of a firearm in the commission of a violent felony, as defined in subdivision (c) of Section 667.5 of the Penal Code, to placement in a juvenile hall, ranch, camp, or with the Department of the Youth Authority.

(b) A court may impose a treatment-based alternative placement order on any minor subject to this section if the court finds the minor has a mental disorder requiring intensive treatment.  Any alternative placement order under this subdivision shall be made on the record, in writing, and in accordance with Article 3 (commencing with Section 6550) of Chapter 2 of Part 2 of Division 6.