Thus, where such evidence is by error or otherwise admitted, then it is the duly of the trial court to expunge it in giving its judgment. If it fails to do so, the appeal court will reject such evidence and consider the case in the light of the legally admitted evidence See Owoniyi v. Omotoso (1961) 2 SCNLR 57, (1961) All NLR 304; Alase v. Ilu (1964) 1 All NLR 390. In any event, it is trite that wrongful admission of inadmissible evidence is not of itself a ground for the reversal of any decision. Similarly, the wrongful exclusion of admissible evidence is not of itself a ground for the reversal of any decision. All these are however dependent on the view held by the appeal court on whether the evidence wrongly admitted or wrongly excluded would have the effect of changing the decision even if admitted or excluded.
— I.T. Muhammad JSC. Musa Abubakar v. E.I. Chuks (SC.184/2003, 14 DEC 2007)