PRINCIPLE STATEMENT

When an allegation of forgery of a document, or, for that matter, of a criminal act is made in a civil proceeding, evidence that would discharge the burden of proof on the person who made the allegation must be clear and unequivocal; when evidence intended to discharge that burden is ambiguous or is capable of several interpretations, not all pointing to the criminal act alleged, the burden cannot be said to have been discharged.

RATIO DECIDENDI (SOURCE)

Per Ayoola, JSC, in Aderounmu & Anor v. Olowu (2000) NLC-2341992(SC) at pp. 6–7; Paras. E–A.
"When an allegation of forgery of a document, or, for that matter, of a criminal act is made in a civil proceeding, evidence that would discharge the burden of proof on the person who made the allegation must be clear and unequivocal. When evidence intended to discharge that burden is ambiguous or is capable of several interpretations, not all pointing to the criminal act alleged, the burden cannot be said to have been discharged."
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EXPLANATION / SCOPE

This establishes heightened proof standard for criminal allegations in civil proceedings. Allegation: Forgery or other criminal act in civil case—serious allegation requiring strict proof. Standard: Evidence must be “clear and unequivocal”—not merely preponderance but clear proof. Ambiguous evidence insufficient: Evidence that is: ambiguous, capable of multiple interpretations, or doesn’t clearly point to criminal act—fails to discharge burden. This serves: protecting against casual criminal allegations in civil cases, requiring strong proof before finding criminal conduct, and recognizing forgery’s serious nature. “Clear and unequivocal” means: evidence unmistakably supports allegation, no significant ambiguity, and clearly establishes criminal conduct. Not quite “beyond reasonable doubt” (criminal standard) but higher than ordinary civil balance of probabilities. Why heightened standard: Criminal allegations carry: serious moral condemnation, potential criminal liability consequences, and reputational harm—requiring strong proof even in civil context. Application: Courts assess: is evidence clear or ambiguous? if multiple interpretations exist, do all point to forgery? is evidence equivocal? Unless clearly established: allegation fails, document stands, and criminal conduct not found. This prevents: unproved criminal stigma, casual forgery allegations, and civil verdicts on insufficient evidence of criminal conduct. The standard recognizes that alleging crime in civil case requires more than ordinary civil proof threshold.

CASES APPLYING THIS PRINCIPLE