Section 1 of the Evidence Act is to the effect that evidence may be given of the facts in issue and relevant fact. Proviso (b) thereto is categorical that the Section shall not enable any person to give evidence of a fact which he is disentitled to prove by any provision of the law for the time being in force. There is no doubt that by virtue of Section 2 of the Evidence Act that a piece of evidence excluded either by the Act itself or any other legislation validly in force in Nigeria cannot be admissible in evidence. It is therefore, not only relevancy that governs admissibility. A piece of evidence may be relevant and yet could, by operation of law, be inadmissible.
— E. Eko, JSC. Kekong v State (2017) – SC.884/2014