Ohio Rev. Code § 1707.45: Burden of proof.

In any indictment, complaint, or information under section 1707.44 of the Revised Code, it shall not be necessary to negative the existence of facts which would bring a security within section 1707.02 of the Revised Code, or would bring a transaction within section 1707.03, 1707.04, or 1707.06 of the Revised Code, or to negative the existence of facts which would bring a transaction within the exceptions of section 1707.34 of the Revised Code. The burden of proof shall be upon the party claiming the benefits of any of such sections.