Ohio Rev. Code Ann. § 2923.121
(B)
(1) This section does not apply to any of the following:
(b) A law enforcement officer or investigator who is authorized to carry firearms but is not acting within the scope of the officer's or investigator's duties, as long as all of the following apply:
(C) It is an affirmative defense to a charge under this section of illegal possession of a firearm in a liquor permit premises that involves the possession of a firearm other than a handgun, that the actor was not otherwise prohibited by law from having the firearm, and that any of the following apply:
(F) As used in this section :
(3) "Restrictive firearms carrying policy" means a specific policy of a law enforcement agency or the bureau of criminal identification and investigation that prohibits all officers of the agency or all investigators of the bureau, while not acting within the scope of the officer's or investigator's duties, from doing either of the following:
(5) "Validating identification" means one of the following: