It is the law that to have locus standi to sue, the plaintiff must show sufficient interest in the suit or matter. One criterion of sufficient interest is whether the party could have been joined as a party in the suit. Another criterion is whether the party seeking the redress or remedy will suffer some injury or hardship arising from the litigation. If the Judge is satisfied that he will so suffer, then he must be heard as he is entitled to be heard. See Chief Ojukwu v. Governor of Lagos State (1985) 2 NWLR (Pl. 10) 806; Busari v. Oseni (1992) 4 NWLR (Pt. 237) 557; Albian Construction Co Ltd. v. Rao Investment and Property Ltd. (1992) 1 NWLR (pt. 219) 583; United Bank for Africa Ltd. v. Obianwu (1999) 12 NWLR (Pt. 629) 78 … A party who is in imminent danger of any conduct of the adverse party has the locus standi to commence an action. See Olawoyin v. Attorney-General of Northern Region (1961) 1 All NLR 269; Gamioba v. Ezesi (1961) 1 All NLR 584; Olagunju v. Yahaya (1998) 3 NWLR (Pt. 542) 501.
— Niki Tobi, JSC. Pam & Anor. V Mohammed (2008) – SC.238/2007