Mo. Rev. Stat. § 328.160
Any person practicing the occupation of barbering without having obtained a license as provided in this chapter, or willfully employing a barber who does not hold a valid license issued by the board, managing or conducting a barber school or college without first securing a license from the board, or falsely pretending to be qualified to practice as a barber or instructor or teacher of such occupation under this chapter, or failing to keep any license required by this chapter properly displayed or for any extortion or overcharge practiced, and any barber college, firm, corporation or person operating or conducting a barber college without first having secured the license required by this chapter, or failing to comply with such sanitary rules as the board prescribes, or for the violation of any of the provisions of this chapter, shall be deemed guilty of a class C misdemeanor. Prosecutions under this chapter shall be initiated and carried on in the same manner as other prosecutions for misdemeanors in this state.
§ 328.160, RSMo