Ohio Rev. Code Ann. § 2921.04
(B) No person, knowingly and by force or by unlawful threat of harm to any person or property or by unlawful threat to commit any offense or calumny against any person, shall attempt to influence, intimidate, or hinder any of the following persons:
(C) Division (A) of this section does not apply to any person who is attempting to resolve a dispute pertaining to the alleged commission of a criminal offense, either prior to or subsequent to the filing of a complaint, indictment, or information, by participating in the arbitration, mediation, compromise, settlement, or conciliation of that dispute pursuant to an authorization for arbitration, mediation, compromise, settlement, or conciliation of a dispute of that nature that is conferred by any of the following: