A.-G., Enugu State v. Avop Plc. (1995) 6 NWLR (Pt. 399) 90 at 125, D per Tobi JCA: ‘And what is more, it is a general principle of law that oral evidence cannot be allowed to contradict documentary evidence. Sec generally section 132(1) of the Evidence Act Cap. 112, Laws of the Federation of Nigeria. This principle of law is based on the premise that (a) the document was first in time and that the possibility of the oral evidence becoming an after thought cannot be entirely ruled out; (b) witness tells more lies than a document. Although a document can also lie by human intervention, the frequency of the lies on the part of a witness in court is much more than a document.’
TESTIFYING IN NATIVE LANGUAGE IS NOT PROOF OF ILLITERACY
It is also imperative to note that the fact that a witness opted to testify in his native language, is not a conclusive evidence that he is an illiterate. He may choose to do so because he feels much comfortable expressing himself in his mother-tongue, and not because he did not know how to write or read.
– T.N. Orji-Abadua, JCA. Kabau v. Rilwanu (2013) – CA/K/179/2001