SALAMI AFOLABI V. GOVERNOR OF OSUN STATE (2003) 13 NWLR (Pt.386) 119 at 129 – 130 the Supreme Court emphasized thus: “It is settled law that to sustain in a plea of res judicata, the party pleading it must satisfy the following conditionalities, to wit – i. That parties (or their privies as they may be) are the same in the present case as in previous case; ii. that the issue and subject matter are the same in the previous suit as in present suit; iii. that the adjudication in the previous case must have been given by a court of competent jurisdiction; and iv. that the previous decision must have finally decided the issues between the parties”.
RES JUDICATA OPERATES WHERE APPLICATION IS SAME AS ONE ALREADY DECIDED SATISFACTORILY
Para. 13: “The Court is of the view that the argument concerning res judicata can only succeed when it is established that the Application brought before it is essentially the same as another one already satisfactorily decided upon before a competent domestic court.”
— Tasheku v FRN (2012) – ECW/CCJ/RUL/12/12