A tainted witness falls into one or both of the two categories hereunder listed: (1) A witness who is an accomplice in the crime charged. (2) A witness who, by the evidence he gives, may and could be regarded as having some purpose of his own to serve. Rasheed Olaiya v. The State (2010) Vol. 180 LRCN 1-197 p.34; The State v. Dominic Okoro & Ors (1974) 2 SC 73 at 82; Ishola v. The State (1978) 9-10 SC 73 at 100 .
— N.S. Ngwuta, JSC. Odogwu v State (2013) – SC.122/2009
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The trial court does not come to a decision by the quantity of the witnesses but on the quality or probative value of the testimony of the witnesses. — O.O. Adekeye, JSC. Mini Lodge v. Ngei (2009) – SC.231/2006
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
The trial Judge should take into consideration the demeanour of witnesses in the evaluation of evidence. Demeanour, which is outward or overt behaviour or manner of a witness, is the exclusive domain of the trial Judge. It includes all open habits and mannerisms of the witness. These ooze out from the body of the witness spontaneously and not tutored. Some of such body movements include a spontaneous positive or negative reaction to a question; shouting at a particular moment or the opposite action of a pretentious mum conduct; movement of part of the body, particularly the hands and the sudden change in the face arising either from anger or happiness, the latter resulting in either a smile or laughter. Another is a sudden remorse on the part of the witness, usually exhibited by refusal to look at the Judge or Counsel, or others in the court, but a sudden drop of the face in the witness box. There are quite a number of behaviours in the determination of demeanour which cannot be exhausted. I can stop with the above as the major conducts of witnesses. I should complete the picture by saying that as appellate judges are deprived of watching the demeanour of witnesses, trial Judges owe the administration of justice a big duty to arrive at the correct conclusion. Of course appellate Judges are not completely hopeless or helpless. They can watch the evaluation of demeanour by the Judge in the cold records.
— Niki Tobi, JSC. Buhari v. INEC (2008) – SC 51/2008
An appellate court should not ordinarily substitute its own views of fact for those of the trial court. See: Ebba v. Ogodo (1974) 1 SCNLR 372; Balogun v. Agboola (1974) 1 All NLR (pt. 2) 66. Ascription of probative value to the evidence of witnesses is pre-eminently the business of the trial court which saw and heard the witnesses. An appeal court will not lightly interfere with same unless for compelling reasons. But where evidence has nothing to do with the demeanour of witnesses or relates to interpretation to be placed on documents tendered before the court, an appellate court will be in a good position to act accordingly. See: Ebba v. Ogodo (supra); Ogbechie Onochie (1998) 1 NWLR (Pt.470) 370. An appellate court will not interfere with findings of fact except where wrongly applied to the circumstance of the case or vital documents tendered were jettisoned or conclusion arrived at was patently perverse or wrong, See: Nwosu v. Board of Customs & Excise (1988) 5 NWLR (Pt. 93) 225; Nneji v. Chukwu (1996) 10 NWLR (pt. 378) 265. And where there is conflict in the evidence of witnesses, documentary evidence will serve as a hanger on which the truth shall be resolved. Documents tendered as exhibits are very vital as they do not embark on falsehood like some mortal beings. See: Olujinle v. Adeagbo (1988) 2 NWLR (Pt.75) 238.
— J.A. Fabiyi, JSC. BFI v. Bureau PE (2012) – SC.12/2008
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)
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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