A competent notice of appeal is like having the right key for a particular door. The notice of appeal is the key to the door to this Court. Without the right key, any effort to gain entrance through the door is an exercise in futility. It is void and therefore a nullity. In the immortal words of Lord Denning, MR in McFoy vs UAC (1961) 3 ALL ER 169 @ 172: “If an act is void, then it is in law, a nullity. It is not only bad but incurably bad … And every proceeding which is founded on it is also bad and incurably bad. You cannot put something on nothing and expect it to stay there. It will collapse.” See also: Madukolu Vs Nkemdilim (1962) 2 SCNLR 341; Skenconsult Vs Ukey (1981) 1 SC 6.
— K.M.O. Kekere-Ekun, JSC. Francis v. FRN (2020) – SC.810/2014