Cal. Welf. & Inst. Code § 5113

Except as provided in Sections 5154, 5173, 5259.3, 5267, and 5306, the facility providing treatment pursuant to Article 1 (commencing with Section 5150), Article 1.5 (commencing with Section 5170), Article 4 (commencing with Section 5250), Article 4.5 (commencing with Section 5260), or Article 6 (commencing with Section 5300) of Chapter 2, the superintendent of the facility, the professional person in charge of the facility and their designee, the professional person designated pursuant to Section 5121 and responsible for the detainment of the person, or the peace officer responsible for the detainment of the person shall not be civilly or criminally liable for any action by a person released at or before the end of the period for which the person was admitted pursuant to the provisions of the appropriate article.