Ohio Rev. Code Ann. § 3127.45
(A) In a case arising under this chapter or involving the Hague Convention on the Civil Aspects in International Child Abduction, the prosecutor may take any lawful action, including resort to a proceeding under sections 3127.31 to 3127.47 of the Revised Code or any other available civil proceeding, to locate a child, obtain the return of a child, or enforce a child custody determination if there is any of the following: