PRINCIPLE STATEMENT

The evidence of a child witness who does not understand the nature of an oath may be received unsworn if the court is satisfied that the child possesses sufficient intelligence to justify reception of the evidence and understands the duty of speaking the truth.

RATIO DECIDENDI (SOURCE)

Per Wali, JSC, in Sambo v. State (1993) NLC-1331991(SC) at pp. 18–19; Paras A–B.
"In any proceeding for any offence the evidence of any child who is tendered as a witness and does not, in the opinion of the court, understand the nature of an oath, may be received though not given upon oath, if in the opinion of the court, such child is possessed of sufficient intelligence to justify the reception of the evidence, and understands the duty of speaking the truth."
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EXPLANATION / SCOPE

This principle, based on statutory provisions governing child witnesses, balances protecting the justice system from unreliable testimony against enabling children who witnessed offenses to testify. The common law required witnesses to testify under oath, creating problems when child witnesses couldn’t understand the religious or solemn nature of oath-taking. The statutory modification creates a two-stage inquiry: First stage—oath comprehension: Does the child understand the nature of an oath? This requires understanding: (1) the solemnity and religious/moral significance of swearing; (2) the obligation to tell the truth under oath; (3) consequences of breaking the oath. If the child understands, they testify under oath like any witness. If not, proceed to second stage. Second stage—competence to testify unsworn: The court must be satisfied of two things: (1) Sufficient intelligence—the child has mental capacity to observe, remember, and relate events accurately. This depends on: age, maturity, ability to communicate, understanding of questions asked, consistency in responses. (2) Understanding duty to tell truth—the child grasps that they must tell the truth even without oath. This doesn’t require understanding oath’s solemnity but recognition that lying is wrong and truth-telling is required. The court’s role is active, not passive. Judges must: (1) conduct preliminary examination to assess competence; (2) ask age-appropriate questions testing understanding; (3) make findings on intelligence and truth-understanding; (4) decide whether to admit unsworn evidence. The statutory provision uses “may be received”—giving courts discretion to reject child testimony even if statutory conditions are met if reliability concerns exist. The principle serves important purposes: (1) enabling prosecution of offenses witnessed primarily by children (child abuse, family violence, etc.); (2) protecting children from inappropriate oath requirements they don’t understand; (3) maintaining evidentiary standards by requiring competence findings; (4) balancing access to justice against reliability concerns. Courts must carefully assess each child individually—chronological age alone doesn’t determine competence, as children of the same age vary greatly in maturity and understanding.

CASES APPLYING THIS PRINCIPLE