PRINCIPLE STATEMENT

Where a party clearly deviates from their pleadings when in testimony they make a case otherwise than they had pleaded, such a piece of evidence goes to no issue.

RATIO DECIDENDI (SOURCE)

Per Onu, JSC, in Aboyeji v. Momoh (1994) NLC-2921990(SC) at p. 10; Paras A--C.
"The appellant therefore clearly deviated from his pleadings when in his testimony, he made a case otherwise than he therein pleaded. ... Such a piece of evidence where adduced goes to no issue."
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EXPLANATION / SCOPE

Evidence must correspond to pleadings. When testimony introduces facts or theories not pleaded, it “goes to no issue”—it’s irrelevant because no issue was raised by the pleadings. Pleadings define issues; evidence proves pleaded facts. Testimony departing from pleadings cannot be considered because: (1) it surprises opponents who prepared based on pleadings; (2) it raises issues not properly joined; (3) it violates the fundamental rule that parties are bound by their pleadings. For example, if plaintiff pleads breach of contract but testifies about tort, the tort evidence goes to no issue. Courts must disregard such evidence. This strict rule enforces pleading discipline and fair notice. However, amendments may cure departures if timely sought. The principle ensures trials proceed on clearly defined issues with adequate notice to all parties.

CASES APPLYING THIS PRINCIPLE