(a)enter at any time by day or by night, any warehouse, godowns, shop, premises, house, building, vessel, vehicle or enclosed place in which he has reason to believe that any intoxicant, hemp, mhowa flowers, molassess, material or article liable to confiscation under this Act is manufactured, kept or concealed or that any still, utensil, implement or apparatus is used, kept, or concealed for the purpose of manufacturing any intoxicant contrary to the provisions of this Act;