The law is well settled that the issue of jurisdiction is so fundamental to adjudication that it can be raised at any stage of the proceedings and even for the first time on appeal to this court. See Usman Dan Fodio University v. Kraus Thompson Ltd (2001) 15 NWLR (Pt. 736) 305; Elabanjo v. Dawodu (2006) All FWLR (Pt. 328) 604, (2006) 15 NWLR (Pt. 1001) 76 115-116 G-A ; PDP v. Okorocha (2012) All FWLR (Pt. 626) 449, (2012) 15 NWLR (Pt. 1323) 205. The issues are therefore competent before this court.
— Kekere-Ekun, JSC. Nyesom v. Peterside (SC.1002/2015 (REASONS), 12 Feb 2016)