§ 50-h. Entry, inspection and investigation. Any person designated for the purpose shall have access to and may enter at all reasonable hours all places where melloream is being manufactured, packaged or stored for sale or distribution in the state of New York, where melloream is otherwise being handled or sold in the state of New York, or where the books, papers, records or documents relating to such transactions are kept, and shall have power to inspect and copy the same, and may administer oaths and take testimony for the purpose of ascertaining facts which in the judgment of the commissioner are necessary to administer this article. The commissioner may inspect a plant beyond the boundary of the state, and when he does, the applicant or licensee shall, prior to such inspection, agree to pay, in addition to the license fee provided pursuant to subdivision two of section fifty-g of this article, fees for the inspection of the plant by the commissioner or his representatives. Such fees shall be twenty-five dollars for each day consisting of seven hours or part thereof during which an employee of the commissioner spends traveling to and from and inspecting the plant. In addition the applicant or licensee shall agree to pay all necessary expenses including but not limited to expenses for traveling, lodging and meals. The commissioner may, if satisfied with the adequacy of inspection by some other regulatory agency, and if satisfied that there is substantial compliance with the regulations of the commissioner, forego actual inspection of such out-of-state plant or plants.