California Code, Business and Professions Code - BPC § 7501.3

The director, in accordance with the State Civil Service Act, and Section 159.5, may appoint and fix the compensation of such clerical, inspection, investigation, and auditing personnel, as well as an assistant chief, as may be necessary to carry out the provisions of this chapter. Except as otherwise provided in Section 159.5, all personnel shall perform their respective duties under the supervision and direction of the chief.