Cal. Government Code § 1028.1

It shall be the duty of any public employee who may be subpenaed or ordered by the governing body of the state or local agency by which such employee is employed, to appear before such governing body, or a committee or subcommittee thereof, or by a duly authorized committee of the Congress of the United States or of the Legislature of this State, or any subcommittee of any such committee, to appear before such committee or subcommittee, and to answer under oath a question or questions propounded by such governing body, committee or subcommittee, or a member or counsel thereof, relating to: (a) Present personal advocacy by the employee of the forceful or violent overthrow of the Government of the United States or of any state. (b) Present knowing membership in any organization now advocating the forceful or violent overthrow of the Government of the United States or of any state. (c) Past knowing membership at any time since October 3, 1945, in any organization which, to the knowledge of such employee, during the time of the employee’s membership advocated the forceful or violent overthrow of the Government of the United States or of any state. (d) Questions as to present knowing membership of such employee in the Communist Party or as to past knowing membership in the Communist Party at any time since October 3, 1945. (e) Present personal advocacy by the employee of the support of a foreign government against the United States in the event of hostilities between said foreign government and the United States. Any employee who fails or refuses to appear or to answer under oath on any ground whatsoever any such questions so propounded shall be guilty of insubordination and guilty of violating this section and shall be suspended and dismissed from his employment in the manner provided by law.