PRINCIPLE STATEMENT

Though admissions are not conclusive proof of matters admitted, an admission of any fact in issue or relevant fact by a party or their agent, whether made in a previous judicial proceeding or not, is admissible in judicial proceedings against or on behalf of the maker under sections 19 to 26 of the Evidence Act; if an admission is relied on as an estoppel, it must be pleaded.

RATIO DECIDENDI (SOURCE)

Per Ogundare, JSC, in African Continental Bank Ltd v. Gwagwada (1994) NLC-261990(SC) at pp. 12–13; Paras A–C and p. 25; Paras B–D.
"Though admissions are not conclusive proof of the matters admitted, an admission of any fact in issue or relevant fact by a party or his agent, whether the admission was made in a previous judicial proceeding or not, is admissible in judicial proceeding against or on behalf of the maker under sections 19 to 26 inclusive of the Evidence Act... It must be noted that if an admission is relied on as an estoppel, then it must be pleaded."
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EXPLANATION / SCOPE

Admissions and estoppels are distinct though related concepts. Admissions (Evidence Act sections 19-26): statements by parties or agents acknowledging facts in issue or relevant facts; admissible against the maker; not conclusive—courts can reject admissions if contrary to truth. Estoppels (equitable doctrine): representations relied upon to another’s detriment; bars maker from denying the representation; must be specifically pleaded. An admission may support an estoppel but they operate differently: admissions are evidence (weight varies); estoppels bind parties conclusively. If relying on estoppel, parties must plead: the representation, reliance, detriment, and why the representor should be bound. Failure to plead estoppel means it operates only as admission (evidence), not as binding estoppel. This distinction ensures parties know the case against them and can respond appropriately.

CASES APPLYING THIS PRINCIPLE