Section 391 - Jurisdiction over mercantile and other establishments1. The commissioner shall have jurisdiction to enforce the provisions of this chapter relating to mercantile establishments, business offices, telegraph offices, restaurants, hotels, apartment houses, theaters or other places of public amusement, bowling alleys, barber shops, shoe polishing establishments, the distribution or transmission of merchandise, articles or messages, or the distribution or sale of articles.2. The commissioner shall cause proper inspections to be made. No person shall interfere with or prevent such inspections. All persons connected with any such mercantile or other establishment herein specified shall properly answer all questions asked by such inspector with reference to any of the provisions of this article.