A man may be convicted on the evidence of a single witness. However such evidence must be credible and cogent. – Ogunwumiju JCA. Okeke v. State (2016)
WHO IS A VITAL WITNESS
A vital witness is a witness whose evidence may determine the case one way or the other and failure to call a vital witness is fatal to the prosecution s case. In other words, a witness who knows something significant about a matter is a vital witness. In Onah v. State (1985) 3 NWLR Pt. 12 Pg.236 a vital witness was described as a witness whose evidence may determine the case one way or the other and it is settled that the failure to call such a witness is fatal to the prosecution’s case.
– H.M. Ogunwumiju, JSC. State v. Ibrahim (2021) – SC.200/2016