Ohio Const. art. IV, § 2

(A) The Supreme Court shall, until otherwise provided by law, consist of seven judges, who shall be known as the chief justice and justices. In case of the absence or disability of the chief justice, the judge having the period of longest total service upon the court shall be the acting chief justice. If any member of the court shall be unable, by reason of illness, disability or disqualification, to hear, consider and decide a cause or causes, the chief justice or the acting chief justice may direct any judge of any court of appeals to sit with the judges of the supreme court in the place and stead of the absent judge. A majority of the Supreme Court shall be necessary to constitute a quorum or to render a judgment.

(B)(1) The Supreme Court shall have original jurisdiction in the following:

(a) Quo warranto;

(b)Mandamus;

(c) Habeas corpus;

(d) Prohibition;

(e) Procedendo;

(f) In any cause on review as may be necessary to its complete determination;

(g) Admission to the practice of law, the discipline of persons so admitted, and all other matters relating to the practice of law.

(2) The supreme court shall have appellate jurisdiction as follows:

(a) In appeals from the courts of appeals as a matter of right in the following:

(i) Cases originating in the courts of appeals;

(ii) Cases involving questions arising under the constitution of the United States or of this state.

(b) In appeals from the courts of appeals in cases of felony on leave first obtained,

(c) In direct appeals from the courts of common pleas or other courts of record inferior to the court of appeals as a matter of right in cases in which the death penalty has been imposed;

(d) Such revisory jurisdiction of the proceedings of administrative officers or agencies as may be conferred by law;

(e) In cases of public or great general interest, the supreme court may direct any court of appeals to certify its record to the supreme court, and may review and affirm, modify, or reverse the judgment of the court of appeals;

(f) The Supreme Court shall review and affirm, modify, or reverse the judgment in any case certified by any court of appeals pursuant to section 3(B)(4) of this article.

(3) No law shall be passed or rule made whereby any person shall be prevented from invoking the original jurisdiction of the supreme court.

(C) The decisions in all cases in the Supreme Court shall be reported, together with the reasons therefor.