On the trial of any will contest under section 2107.71 of the Revised Code, the order of probate is prima-facie evidence of the attestation, execution, and validity of the will or codicil. The contesting party may call any witness to the will as upon cross examination.
Order of probate prima-facie evidence of attestation, execution and validity of will
Ohio Rev. Code Ann. § 2107.74, under Chapter 2107 | Wills.
Ohio Rev. Code Ann. § 2107.74