Cal. Penal Code § 597c

Any person who is knowingly present as a spectator at any place, building, or tenement for an exhibition of animal fighting, or who is knowingly present at that exhibition or is knowingly present where preparations are being made for the acts described in subdivision (a) or (b) of Section 597b, is guilty of a misdemeanor punishable by imprisonment in a county jail for a period not to exceed six months, or by a fine of five thousand dollars ($5,000), or by both that imprisonment and fine.