California Code, Welfare and Institutions Code - WIC § 5154

(a) Notwithstanding Section 5113, if the provisions of Section 5152 have been met, the professional person in charge of the facility providing 72-hour treatment and evaluation, their designee, the medical director of the facility or their designee described in Section 5152, the psychiatrist directly responsible for the person's treatment, or the psychologist shall not be held civilly or criminally liable for any action by a person released before the end of 72 hours pursuant to this article.

(b) The professional person in charge of the facility providing 72-hour treatment and evaluation, their designee, the medical director of the facility or their designee described in Section 5152, the psychiatrist directly responsible for the person's treatment, or the psychologist shall not be held civilly or criminally liable for any action by a person released at the end of the 72 hours pursuant to this article.

(c) 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 72 hours pursuant to this article.

(d) A member of a mobile crisis team or a professional person who has been designated by the county pursuant to Section 5121 and who detains or transports a person pursuant to Section 5150 shall not, as a result of detaining or transporting the person, be civilly or criminally liable for any action by the person if the person is released at or before the end of the 72 hours pursuant to this article.

(e) The amendments to this section made by Assembly Bill 348 of the 2003-04 Regular Session  1 shall not be construed to revise or expand the scope of practice of psychologists, as defined in Chapter 6.6 (commencing with Section 2900) of Division 2 of the Business and Professions Code.