It has long been established that the function of the evaluation of evidence is essentially that of the trial Court, Igago v State (1999) LPELR – 1442 (SC) 27; Onuoha V. The State [1998] 5 NWLR (pt. 548) 118. Where the trial Court has unquestionably, evaluated evidence and, justifiably, appraised the facts, it is not the business of an appellate Court to interfere, and to substitute its own views for the view of the trial Court. – Nweze JSC. Abdullahi v. Adetutu (2019)
EVIDENCE GIVEN IN ANOTHER CASE, HOW MAY BE USED IN PRESENT CASE
Evidence given by a witness in another case may be used to impeach his credit if, in the later case, he says something different; but what he said in the earlier case does not become evidence in the later case. And a judgment given in another case can, in appropriate cases, be put in a later suit, to prevent the re-opening of the same question. One hopes that the indiscriminate introduction of other proceedings into a trial will be discontinued.
— Bairamian, F.J. Owonyin v. Omotosho (1961) – F.S.C.249/1960