In INEC v. Ogbadibo LGC (2014) 22640(CA) 24-25, F-C, by Ogbuinya, JCA as follows:
“From the etymological perspective, the cliche expression, locus standi, traces its roots to Latin Language which means: “place of standing”. In its expounded legal form, locus standi denotes the legal right or capacity of a person to institute an action in a Court of law when his right is trampled upon by somebody or authority. The locus classicus on locus standi in the Nigerian jurisprudence is the case of Adesanya V The President, FRN (1981) 5 SC 112; (1981) 2 NCLR 358… Locus standi was evolved to protect the Court from being converted into a jamboree by professional litigants or meddlesome interlopers who have no interest in matters, See Taiwo V Adegboro (2011) 11 NWLR (Pt. 1159) 562″
INTEREST IS THE MEASURING ROD FOR AN ACTION
Para. 27 – 28: “Generally, and from a legal standpoint, the necessity for an applicant to provide justification of interest in a case is attested to by the adage that “Where there is no interest, there is no action”, and also “An interest is the measuring rod for an action”. In other words, an application is admissible only when the applicant justifies that he brings a case before a judge for the purposes of protecting an interest or defending an infringement of such. Such an interest must be direct, personal and certain.”
— Oserada v ECOWAS Council of Ministers & Ors. (2008) – ECW/CCJ/JUD/01/08