The basic law is that parties are bound to plead all facts they intend to rely upon at the trial and facts not pleaded will go to no issue. One rationale behind this principle is that litigation must follow some restrictive order and not open-ended in order to save the time of both the Courts and the litigants. If the procedure of pleadings was not introduced in litigation, parties search for evidence could not have ended and that should have protracted litigation beyond expectation. The law simply put, is that litigation is fought on pleadings. The pleadings define the parameters of the case and they give notice of the case to the other party. Any evidence led must be within the circumference of the facts pleaded. Pleadings in that wise, must not be deficient of the facts required to build up the case.
— S.J. Adah, JCA. Luck Guard v. Adariku (2022) – CA/A/1061/2020