The rules of evidence in civil causes, where applicable, govern in all criminal causes.
Ohio Rev. Code Ann. § 2945.41
Rules applicable in criminal cases
Effective: October 1, 1953; Latest Legislation: House Bill 1 - 100th General Assembly
Official source: Ohio Laws & Administrative Rules (Legislative Service Commission). Reproduced from public-domain Ohio statutes; confirm against the official source for the current text. Not legal advice.