Plea of estoppel

Plea of estoppel operates not only against the parties but also against the jurisdiction of the court itself and robs the court of its jurisdiction to entertain same cause of action on the same issues previously determined by court of competent jurisdiction between the same parties.See Lawal v. Dawodu (1972) 1 All NLR (pt.2)270 Oshodi v. Eyifunmi (2000)13NWLR(pt. 684)298