Whoever violates any provision of section one hundred and thirty-nine shall be punished by a fine of not less than one hundred nor more than five hundred dollars, or by imprisonment for not less than three months nor more than one year, or both. A conviction of any such violation shall be reported forthwith by the court or magistrate to the commissioner, who may revoke the license of any licensed person so convicted.
Mass. Gen. Laws ch. 6, § 141