A tainted witness has been classified as one who is either an accomplice or by the evidence he gives, whether as a witness for the prosecution or defence, may and could be regarded as having some purpose of his own to serve. See: Ishola v. The State (1978) NSCC 499 at 509.
— Iguh, JSC. Oguonzee v State (1998) – SC.131/97
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Photographs taken of the deceased’s corpse are secondary evidence. They become admissible only when the negative is also tendered and their inadmissibility has nothing to do with the maker or photographer. However in this age of digital photography where the negatives are stored electronically, it becomes necessary for the photographer to be called to testify. — K.B. Aka’ahs, JSC. Mati Musa v The State (2019) – SC.902/2014
A court has a duty to disallow a question which is not relevant to the proceedings; but a question which is relevant can freely be put to a witness and must be answered, although the weight to be attached to the answer is an entirely different matter. Thus relevance and admissibility are closely knit together while the question of weight appertains to the province of evaluation and should, as always, be kept in separate compartment.
– Achike JCA. Adeyemi v. Edigin (1990)
Thus, in considering and ascribing probative values to the evidence of witnesses, a Court is under duty to appraise it to see whether they are admissible, cogent, credible and probable. Thus, in the discharge of this onerous but very essential duty, a Court will be wary of crediting any witness who has either been so discredited or his so inconsistent on material facts in contention between the parties. It is for this reason that it is settled law that no witness who has given materially inconsistent evidence on oath is entitled to the honour of credibility and such a witness does not deserve to be treated as a truthful witness. See Ezemba v. Ibeneme (2009) 14 NWLR (Pt. 789) 623.
— B.A. Georgewill JCA. Stanbic IBTC Bank Plc V. Longterm Global Capital Limited & Ors. (CA/L/427/2016, 9 Mar 2018)
Where the evidence of such a witness is otherwise credible and sufficiently of probative value to the charge, the fact of his relationship to the victim or that he has other personal interest of his own to serve is by itself not sufficient to reject his evidence. In law, causes are not lost on the basis that the witness/s is/are members of the same family, association or community. Even where the Court fails or omits to caution or warn itself on evidence that is true in fact and sufficient to ground a charge, the failure or omission would not weaken the validity of such evidence or be fatal to a conviction.
– M.L. Garba JCA. Odogwu v. Vivian (2009) – CA/PH/345/05
The law is trite that unless where the law prescribes otherwise, there can be a conviction based on the evidence of a sole witness. Such evidence of a sole witness must be cogent, strong, credible and reliable before a Court can rely to found a conviction. See Oduneye v The State (2001) 2 NWLR (pt 697) 311, Abogede v State (1996) 5 NWLR (pt 449) 279 at 280, Ighalo v The State (2016) LPELR – 40840 (SC). 27 Ordinarily, the credibility of evidence does not depend on the number of witnesses who testify on a particular issue, but it depends on whether the evidence of a single witness is believable and accepted by the Court and if so believed by the Court, then it is sufficient to ground a conviction. SeeAli v The State (1988) 1 NWLR (pt 68) 1, Lase v The State (2017) LPELR – 42468 (SC), Abogede v The State (1996) 4 SCNJ 227.
— J.I. Okoro, JSC. Chibuike Ofordike V. The State (SC.695/2016, 2019)
It is trite law that there is no rule which imposes an obligation on the prosecution to call a host of witnesses; all the prosecution need do is to call enough material witnesses to prove its case, and in so doing it has a discretion in the matter. See: Samuel Adaje v. The State (1979) 6-9 SC 18 at 28. Bako Bahor v. Yaburi NA Police (1970) NMLR 107 at 112; E.O. Okonofua & Anor v. The State (1981) 6-7 SC 1 at 18. See also section 179(1) of the Evidence Act. What is more it is the law that if a witness is not called by the prosecution, the defence is at liberty to do so. —
Onu JSC. Oguonzee v State (1998) – SC.131/97
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