Ohio Rev. Code § 321.41
On the written application of at least twenty taxpayers of a county, the court of common pleas shall appoint a committee of three persons to examine the books and papers belonging to the offices of the county auditor or county treasurer, and make report of their proceedings and the result of their examination. Before such committee is appointed, one or more of such taxpayers shall enter into bond to the state, in a sum and with sureties to the satisfaction of the court, conditioned that the obligors will pay all the costs and expenses of such examination if the court does not, on such report, certify that there was reasonable ground for the application. Before entering upon his duties, each member of such committee shall take an oath to perform his duties faithfully, and in the discharge thereof shall have all the powers given in section 321.40 of the Revised Code to examiners of the county treasury.
Each member of such committee shall be entitled to receive three dollars for each day occupied in the discharge of his duties, which, with all other costs and expenses of such examination, upon approval by the court, shall be paid from the county treasury.
R.C. §321.41