Cal. Gov. Code § 1097

Every officer or person prohibited by the laws of this state from making or being interested in contracts, or from becoming a vendor or purchaser at sales, or from purchasing script, or other evidences of indebtedness, including any member of the governing board of a school district, who willfully violates any of the provisions of such laws, is punishable by a fine of not more than one thousand dollars ($1,000), or by imprisonment in the state prison, and is forever disqualified from holding any office in this state.