In the case of: Ohakim v. Agbaso (2010) 19 NWLR (Pt. 1226) p. 172 at pgs. 243 244, paras. H-B, the Supreme Court restated the purport of the above set out determinants of jurisdiction of Court and the effect where any one of them is lacking, per Muhammad, JSC, as follows: in addition, all law Courts or Tribunals, while exercising their powers must be guided by the general determinants of jurisdiction (a) The statute establishing the Courts/Tribunal. (b) The subject-matter of litigation. (c) The litigating parties. (d) The procedure by which the case is initiated. (e) Proper service of process. (f) Territory where the cause of action arose or, as the case may be, where the defendant resides. (g) Composition of the Court/Tribunal. If any of the above is lacking, then the subject matter, the parties or the composition of the Court/Tribunal is defective which may lead to a nullity.
— O.F. Omoleye JCA. Amaechi V. The Governor of Rivers State & Ors. (CA/PH/342/2015, 8 May 2017)