All public dance halls, ball rooms, and academies shall be subject to inspection by the police department of the city at all reasonable times and whenever they are open for dancing, instruction in dancing, or for any other purpose.
Any police officer shall have the power to cause the place, hall or room where any public dance or ball is given, to be vacated whenever any provision of any law or ordinance with regard to public dances and public balls is being violated, or whenever any indecent act shall be committed, or when any disorder of a gross, violent or vulgar character shall take place therein.
53 P.S. § 4739