Ohio Revised Code Title XXIX. Crimes Procedure § 2938.03

The magistrate, or judge or clerk of court of record, shall set all criminal cases for a trial at a date not later than thirty days after plea is received, or in those cases in which the charge has been reduced on preliminary hearing or has been certified by another magistrate, then at a date not later than thirty days from fixing of charge or receipt of transcript as the case may be. Continuances beyond such date shall be granted only upon notice to the opposing party and for good cause shown.

Criminal cases shall be given precedence over civil matters in all assignments for trial and if the volume of contested criminal matters in courts of more than one judge is such as to require it, the chief justice or presiding judge of such court shall assign additional judges from other divisions of the court to assist in the trial of such criminal matters; in the case of county courts, the presiding judge of the court of common pleas shall assign county judges from other areas of jurisdiction within the county to assist those county judges whose volume of criminal cases requires assistance.