Rule 25 - Disability of a Judge(A) During trial. If for any reason the judge before whom a jury trial has commenced is unable to proceed with the trial, another judge designated by the administrative judge, or, in the case of a single-judge division, by the Chief Justice of the Supreme Court of Ohio, may proceed with and finish the trial, upon certifying in the record that he has familiarized himself with the record of the trial. If such other judge is satisfied that he cannot adequately familiarize himself with the record, he may in his discretion grant a new trial.(B) After verdict or finding of guilt. If for any reason the judge before whom the defendant has been tried is unable to perform the duties of the court after a verdict or finding of guilt, another judge designated by the administrative judge, or, in the case of a single-judge division, by the Chief Justice of the Supreme Court of Ohio, may perform those duties. If such other judge is satisfied that he cannot perform those duties because he did not preside at the trial, he may in his discretion grant a new trial.