California Code, Penal Code - PEN § 374a

A person giving information leading to the arrest and conviction of a person for a violation of Section 374c, 374.2,374.3, 374.4, or 374.7 is entitled to a reward for providing the information.

The amount of the reward for each arrest and conviction shall be 50 percent of the fine levied against and collected from the person who violated Section 374c, 374.2, 374.3, 374.4, or 374.7 and shall be paid by the court. If the reward is payable to two or more persons, it shall be divided equally. The amount of collected fine to be paid under this section shall be paid prior to any distribution of the fine that may be prescribed by any other section, including Section 1463.9, with respect to the same fine.