(1) Every document purporting to be a copy of, or extract from, any document kept by the Board and purporting to be certified by an officer of the Board authorised in that behalf by the Board, whose official position it shall not be necessary to prove, to be a true copy of, or extract from, that document shall, without proof of the signature of that officer, unless the contrary is proved, be admissible in evidence in all legal proceedings as of equal validity with the original document.

(2) In any legal proceedings (including proceedings relating to an offence) a certificate signed by an officer of the Board authorised in that behalf, whose official position it shall not be necessary to prove, is, without proof of that officer’s signature, admissible, unless the contrary is proved-

(a) if it certifies that the officer has examined the relevant records and that it appears from those records that a specified notice was given or sent to a stated person at, or left at, the address and on the date stated therein, as evidence that the notice was given or sent to that person at, or left at, that address on that date,