In ADESOLA V. ABIDOYE (1999) 14 NWLR (Pt. 637) 28 @ p. 56, where the Supreme Court per Karibi-Whyte J.S.C., “The construction of the word “may” in provisions of statutes has always raised difficulties. This is not because of the impression of the word … because the word “may” assumes a technical meaning depending upon the intendment of the statutory provision in which it is used. Although the etymological meaning of “may” is permissive and facultative and seldom can mean “must” and imperative it assumes this last-mentioned character; when there is anything in the provision that makes it the duty on the person on whom the power is conferred to exercise that power. When the exercise of the power is coupled with a duty on the person to whom it is given to exercise it, then it is imperative. In the instant case, there is a duty on the aggrieved who desires to set aside the decision of the prescribed authority to make his representation to the Commissioner for Chieftaincy Affairs within twenty-one days of the decision. The use of the expression ‘may’ in this situation is not merely facultative, but mandatory. There is no alternative.The aggrieved has no choice of action in the remedy provided for him….Accordingly, the word ‘may’ in Section 22(5) of the Chiefs Law of Oyo State, 1978 should be construed as imperative; the exercise of the right not being optional.”
WHERE PROVISION OF STATUTE ARE CLEAR AND UNAMBIGUOUS, LITERAL RULE IS APPLIED
The primary function of the court is to search for the intention of the lawmaker in the interpretation of a statute. Where a statute is clear and unambiguous, as it is in this case, the court in the exercise of its interpretative jurisdiction, must stop where the statute stops. In other words, a court of law has no jurisdiction to rewrite a statute to suit the purpose of one of the parties or both parties. The moment a court of law intends to rewrite a statute or really rewrites a statute, the intention of the lawmaker is thrown overboard and the court changes place with the lawmaker. In view of the fact that that will be against the doctrine of separation of powers entrenched in the Constitution, a court of law will not embark on such an unconstitutional act. Courts of law follow the literal rule of interpretation where the provision of the statute is clear and no more. And that is the position in this appeal.
– Tobi JSC. Araka v. Egbue (2003) – SC.167/1999