A jockey, trainer or owner of a horse, who has reasonable grounds to believe that his horse was interfered with or impeded or otherwise hindered during the running of the race, or that any riding rule was violated by any other jockey or horse during the running of the race, may immediately make a claim of interference or foul with the clerk of scales, the stewards or their delegate before the race has been declared official. The stewards may thereupon hold an inquiry into the running of the race. No person shall make any claim of interference or foul knowing the same to be inaccurate, false or untruthfull.
Cal. Code Regs. Tit. 4, § 1702