In the case of PEENOK INVESTMENTS LTD. v. HOTEL PRESIDENTIAL (1982) 12 SC (REPRINT) the Supreme Court per A.G. IRIKEFE JSC stated that as a general proposition of law, foreign law is a question of fact which should be pleaded and proved in a trial Court.
LAW IS NOT NECESSARY TO BE PLEADED IN PLEADINGS
I concede that it is not necessary to plead law before reliance can be placed on it. It is sufficient to plead material facts which will lead to a certain legal result, and once sufficient material facts have been pleaded, the inference to be drawn from such pleaded facts and the particulars of the law to be relied upon for such an inference need not be pleaded. See Vandervell’s Trust (No.2), White v. Vandervell Trustees Ltd. (1974) 3 All E.R. 205 at 213; Anyanwu v. Mhara (1992) 5 NWLR (Pt. 242) 386 at 398 etc.
— Iguh, JSC. Onamade v ACB (1997) – SC.199/1990