The position is that a tainted witness is either an accomplice or a witness who has an interest to defend or a purpose to serve in a case in which he is called upon to give evidence as a witness. It has to be shown that the witness has some peculiar interest to protect or purpose to serve in the evidence he gives in a case in order to make him a tainted witness.
– M.L. Garba JCA. Odogwu v. Vivian (2009) – CA/PH/345/05
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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)
In OCHIBA v. THE STATE (2011) LPELR 8245 (SC) where it was held as follows: “I need to say it that it is settled Law that the prosecution was not obliged to call a host of witnesses in order to discharge the burden placed on it to prove the charge against the appellant beyond reasonable doubt as dictated by section 138(1) of the Evidence Act. A sole witness like P.w.1, who has given credible and clear evidence which was believed by the trial Judge, will suffice. See OBUE V THE STATE (1976) 2 SC 141; SADAM v THE STATE [2010] 12 SC (PT.1) 73 at 87-88; AKPAN v THE STATE [1991] 3 NWLR (PT 182) 695”.
As the Supreme Court per Tobi, JSC puts it in Nigerian Army v. Major Jacob Iyela [2008] LPELR-2014 (SC); [2008] 7-12 SC 35; [2008] 18 NWLR (Pt. 1118) 115: A case is not necessarily proved by the quantity of witnesses. A case is proved by the quality of the witnesses in the light of either inculpatory or exculpatory evidence, as the case may be. And so, it does not necessarily follow that because the respondent called four witnesses, they rebutted the evidence of the two witnesses of the appellant.
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)
From the foregoing judicial decisions, it is clear that in election petition litigation, whether the witnesses which a party intends to call are ordinary or expert witnesses and whether they are willing or subpoenaed witnesses, their witness depositions must be filed along with petition before such witnesses will be competent to testify before the tribunal or court.
— H.S. Tsammani, JCA. Peter Obi & Anor. v INEC & Ors. (2023) – CA/PEPC/03/2023
This court has stated in a legion of cases that where the evidence of an accused person is the only witness of an event, any other evidence given by another person not being an eye witness to that particular event will be hearsay or speculative. I commend the decision of this court in Ahmed v. State (1999) 7 NWLR (Pt. 612) 641 at 675 Belgore, JSC while allowing the appeal stated as follows: “In a situation where only the evidence of the accused person as to the actual stabbing is the only eye-witness account, he is either believed or there is no other evidence to believe.” Also in Bassey v. State (2019) 18 NWLR (Pt. 1103) 160 at page 166, para. F, Abba Aji, JSC while allowing the appeal stated as follows: “the testimony of appellant appears to me very striking and believable since there was no eye witness to the crime except the story of the appellant herein. His evidence seems consistent and correlated.”
Enobong v. The State (2022) – SC/CR/249/2020
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