Certified copies of all election papers, registers of voters, and records, duly authenticated by the person having custody thereof, shall be competent evidence and prima facie proof of their contents; but the party against whom the same shall be produced shall have the right to compel the attendance of the person who certified them for cross-examination. Examiners to take and report evidence may be appointed, and reasonable notice of the time and place of taking the same shall be prescribed by the court or judge and served upon the opposite party.
25 P.S. § 3466