The racing officials are strictly responsible to the Board for the performance of their respective duties, and they shall promptly report to the Board or its stewards, any violation of the rules and regulations of the Board coming to their attention or of which they have knowledge. Any racing official who fails to exercise due diligence in the performance of his duties shall be relieved of his duties by the stewards and the matter referred to the Board.
Cal. Code Regs. Tit. 4, § 1521