California Code, Welfare and Institutions Code - WIC § 1001.5

(a) Except when authorized by law, or when authorized by the person in charge of an institution or camp administered by the Youth Authority, or by an officer of the institution or camp empowered by the person in charge of the institution or camp to give that authorization, any person who knowingly brings or sends into, or who knowingly assists in bringing into, or sending into, any institution or camp, or the grounds belonging to any institution or camp, administered by the Youth Authority, or any person who, while confined in the institution or camp knowingly possesses therein, any controlled substance, the possession of which is prohibited by Division 10 (commencing with Section 11000) of the Health and Safety Code; any alcoholic beverage; any firearm, weapon or explosive of any kind; or any tear gas or tear gas weapon shall be punished by imprisonment in a county jail for not more than one year or by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code.

(b) Except as otherwise authorized in the manner provided in subdivision (a), any person who knowingly uses tear gas or uses a tear gas weapon in any institution or camp specified in subdivision (a) is guilty of a felony.

(c) This section shall not be construed to preclude or in any way limit the applicability of any other law proscribing a course of conduct also proscribed by this section.