Ohio Rev. Code § 5589.14: Prosecution of offenses.

The prosecuting attorney shall prosecute all offenders under sections 5589.02 to 5589.13, inclusive, of the Revised Code, upon application of any official or individual filing any affidavit before any magistrate of the county charging an offense under such sections. This section shall not prevent the prosecuting attorney or any other official from prosecuting offenders under such sections upon his own initiative.