In Kakih v PDP (2014) 15 NWLR (Pt.1430) p.374, in support of N.E.P.A. v Edegbero supra. I said that: “The claim of the party and the reliefs must be within Section 251 (1) of the Constitution before the Federal High Court can have jurisdiction. Furthermore, where an agency of Federal Government is a party, the principal reliefs must be directed against the Federal Government or any of its agencies before a Federal High Court can have jurisdiction.”
JURISDICTION IS A THRESHOLD MATTER
Jurisdiction is a threshold matter. Once raised all proceedings abate until it is resolved. Proceedings conducted without jurisdiction amount to a nullity. There is nothing as useless as conducting a trial flawlessly only to find out that the court had no jurisdiction to hear the matter. That explains why the issue of jurisdiction can be taken at any stage of the proceedings, at trial, on appeal and even in the Supreme Court for the first time.
– Rhodes-Vivour, JSC. Olabomi v. Oyewinle (2013) – SC.345/2012