It shall be unlawful for any person to consume, or any person, persons, co-partnership or corporation engaged in the business of operating any public dance hall to knowingly allow, permit or suffer to be consumed any intoxicating liquor, wine, or beer, in any public dance hall, in any toilet, cloak room or appendage to any such dance hall, or in any other room directly connected therewith unless said premises are duly licensed by the Michigan liquor control commission.

   Any person engaged in the business of operating any public dance hall whether as owner, proprietor, manager, or employee, shall be held liable for knowingly permitting the violation of the provisions of this section, and any such owner or proprietor shall be held criminally liable for knowingly permitting the acts of his manager, servant, agent or employee in violation of the provisions of this section. The violation of any of the provisions of this section is hereby declared to be a misdemeanor.