Ohio Rev. Code § 309.03
Except as otherwise provided in section 3.061 of the Revised Code, before entering upon the discharge of the official duties of the prosecuting attorney, the prosecuting attorney shall give a bond, signed by a bonding or surety company approved by the court of common pleas or the probate court and authorized to do business in this state, or, at the prosecuting attorney's option, signed by two or more freeholders having real estate in the value of double the amount of the bond over and above all encumbrances to the state. Such bond shall be in a sum not less than one thousand dollars, to be fixed by the court of common pleas or the probate court and conditioned that such prosecuting attorney will faithfully discharge all the duties enjoined upon the prosecuting attorney by law, and pay over all moneys received in the prosecuting attorney's official capacity. The expense or premium for such bond shall be paid by the board of county commissioners, and shall be charged to the general fund of the county. Such bond, with the approval of such court and the oath of office required by sections 3.22 and 3.23 of the Revised Code indorsed thereon, shall be deposited with the county treasurer.
R.C. § 309.03