Ohio Revised Code Title XXIX. Crimes Procedure § 2930.18

(1) Participating, at the prosecutor's request, in preparation for a criminal or delinquency proceeding;

(2) Attendance at a criminal or delinquency proceeding if the attendance is reasonably necessary to protect the interests of the victim;

(3) Attendance at a criminal or delinquency proceeding if the victim's attendance is pursuant to a victim's constitutional and statutory rights.