Ohio Rev. Code Ann. § 3731.21
(B)
(2) If the state fire marshal elects to file a complaint with both the attorney general and a county prosecutor, the following circumstances apply, as applicable:
(a) If both the attorney general and the county prosecutor determine that the complaint should be prosecuted, the state fire marshal shall do both of the following:
(3) If the state fire marshal elects to file a complaint with either the attorney general or a county prosecutor, but not both, the following circumstances apply, as applicable: