Management to post notices or exhibit slides.

(1) Every person responsible for the management of demonstration or exhibition in a show house and every person who controls the deliberations of a public assembly or meeting in a public hall, shall bring to the notice of the audience or the spectators, by posting notices prominently or by exhibiting slides in the case of any cinamatograpic exhibition, that any person smoking during a demonstration, exhibition or meeting, in the show house or public hall shall be liable to prosecution.