Ohio Rev. Code § 2939.11
The official reporter of the county, or any reporter designated by the court of common pleas, at the request of the prosecuting attorney, or any such reporter designated by the attorney general in investigations conducted by the attorney general, may take notes of or electronically record testimony before the grand jury, and furnish a transcript to the prosecuting attorney or the attorney general, and to no other person. The reporter shall withdraw from the jury room before the jurors begin to express their views or take their vote on the matter before them. Such reporter shall take an oath to be administered by the judge after the grand jury is sworn, imposing an obligation of secrecy to not disclose any testimony taken or heard except to the grand jury, prosecuting attorney, or attorney general, unless called upon in court to make disclosures.
R.C. § 2939.11