Ohio Rev. Code Ann. § 901.28

The director of agriculture, or any person designated by the director, shall, upon demand, have the right to inspect books, accounts, records, and memoranda of any company, firm, corporation, persons, association, or copartnership, subject to the sections of the Revised Code administered by the department of agriculture, and to examine under oath any person, including any officer, agent, or employee of any such company, firm, corporation, person, association, or copartnership. Any person, other than the director, who makes such a demand, shall produce his authority to make such inspection.