In an action for a libel or a slander, the defendant may allege and prove the truth of the matter charged as defamatory. Proof of the truth thereof shall be a complete defense. In all such actions any mitigating circumstances may be proved to reduce damages.
Defenses in actions for libel or slander
Ohio Rev. Code Ann. § 2739.02, under Chapter 2739 | Slander; Libel.
Ohio Rev. Code Ann. § 2739.02