California CodesBusiness and Professions Code - BPCDivision 8 — Special Business RegulationsChapter 1 — AutomobilesSection 18413

(a) In addition to the criminal and civil penalties herein provided, any person who is injured in his business or property by reason of anything declared to be unlawful by this chapter may sue therefor in any court having jurisdiction in the county where the defendant resides or is found, or any agent resides or is found, or where service may be obtained, without respect to the amount in controversy, and recover twofold the damages sustained by him, and the costs of suit.

(b) Whenever it appears to the court before which any proceedings under this chapter may be pending, that the ends of justice require that other parties be brought before the court, the court may cause them to be made parties defendant and summoned, whether or not they reside in the county where such action is pending.