One witness is sufficient to get judgment. What is important is that the testimony of the witness is credible, relevant and has probative value upon which the court can rely on in giving judgment. Although preponderance of evidence is a strong factor influencing the mind of the trial judge, yet the number of witnesses holds no much significance over the quality of evidence adduced from a minimum number. However, there are instance where the testimony of one witness alone will not be sufficient for judgment. For instance, an offence of sedition, treasonable felonies, concealment of treason or the promotion of inter-communal war, single evidence of a minor in defilement case.
See Sections 200, 201 and 204 Evidence Act, 2011. Sections 40, 41, 42 and 51 Criminal Code Act, Cap. C38 LFN 2004. Adamu v. The State (2017) HELAR ratio 4; Bassey V. The State (2019) HELAR ratio 7
Similarly, a person cannot be convicted of committing or procuring the commission of perjury on the testimony of one witness which is not corroborated, contradicting the oath on which perjury is assigned. So also where a person is charged for driving at a higher speed than the allowed maximum, such person cannot be convicted solely on the evidence of one witness. Except where the witness is a duly authorized officer who was at the time of the commission of the offence, the officer was operating any mechanical or electronic device for the recording of the speed of a moving vehicle. Then tending the device together with the testimony of the duly authorized officer will be sufficient. See Section 200, 201 and 204 Evidence Act, 2011; Ogu V. C.O.P (2017) HELAR ratio 6