Ohio Rev. Code Ann. § 321.42

On the presentation of the report of an examining committee as provided in section 321.41 of the Revised Code, if a breach of the bond of either the county auditor or county treasurer is shown, the prosecuting attorney shall commence an action on the bond of the delinquent officer. If no breach is reported, he shall commence an action on the bond of the applicants, unless they pay to the county the costs, or the court certifies that there was reasonable grounds for the application.