Mo. Rev. Stat. § 231.330: Violations — penalty.

Any official or other person who shall willfully fail to comply with any of the provisions of sections 231.150 to 231.330, and any person who shall willfully violate any of the provisions thereof, shall be deemed guilty of a misdemeanor, and where no other or different punishment is provided, shall be punished by a fine of not less than five dollars nor more than five hundred dollars.