Ohio Rev. Code Ann. § 1331.16
(C) Each investigative demand shall:
(2) If it is a demand for production of documentary material:
(3) If it is a demand for answers to written interrogatories:
(4) If it is a demand for the giving of oral testimony:
(D) No investigative demand shall:
(E) Service of any investigative demand may be made and is complete by doing either of the following:
(H)
(1) Whenever a natural person who is served with a demand under this section refuses, on the basis of the person's privilege against self-incrimination, to provide any oral testimony, to answer any written interrogatories, or to produce any documentary material, the attorney general or the attorney general's designated representative may file a written request with a court of common pleas, and the court, unless it finds that to do so would not further the administration of justice, shall compel that person to provide the oral testimony, to answer the written interrogatories, or to produce the documentary material if all of the following apply: