It is not my understanding of the law of brief writing that a reply brief seeks a different relief outside the main brief. A reply brief, as the name implies, is a reply to the respondent’s brief. A reply brief is filed when an issue of law or arguments raised in the respondent’s brief call for a reply. A reply brief should deal with only new points arising from the respondent’s brief. In the absence of a new point, a reply brief is otiose and the Court is entitled to discountenance it. A reply brief is not a repair kit to put right, any lacuna or error in the appellant’s brief.
— Niki Tobi, JSC. Mozie & Ors. v. Mbamalu & Ors. (2006) – S.C.345/2001