Ohio Rev. Code Ann. § 505.484

The treasurer of the joint police district board, before entering upon the duties of that office, shall execute a bond payable to the state, in the amount and with surety to be approved by the joint police district board, conditioned for the faithful performance of all the official duties required by the treasurer. The bond shall be deposited with the president of the joint police district board, and a copy thereof, certified by the president, shall be filed with the county auditor.