Evidence Act (Northern Ireland) 1939 Ss. 1, 2 rep. by 1997 NI 21 3Proof of instrument to validity of which attestation is necessary.4Presumptions as to documents twenty years old.5Rules of court as to proof by affidavit.6Interpretation.7Savings.8Short title.Evidence Act (Northern Ireland) 1939 F11939 CHAPTER 12An Act to amend the law of evidence.[4th July 1939]