Section 3(2)(a-f) of the 1958 Act quoted above specified the grounds upon which foreign Judgment should not be registered. The grounds are alternative grounds and cannot be combined. I agree with the submission of the learned Senior Counsel for the Respondent that the word “or” used in between the grounds is disjunctive and not conjunctive. The word “or” suggests that one cannot rely on the two grounds at the same time.
— J.O. Bada, JCA. Conoil v Vitol (2011) – CA/A/213/2010