South African courts frequently rely on circumstantial evidence—facts from which the court must infer further facts—especially when direct evidence is unavailable. The inferences drawn must adhere to principles that vary depending on the standard of proof: in civil cases, this is the balance of probabilities; in criminal or punitive contempt matters, it is beyond a reasonable doubt. This article explains the differences and guiding legal principles, with key case law to illustrate the approach.
In civil litigation:
If two inferences are equally possible, the party bearing the onus fails.
Illustrative Case: AA Onderlinge Assuransie Assosiasie Bpk v De Beer 1982—the court used physical evidence to infer the likely point of impact. The inference was valid only because it rested on objective facts.
In Briers v Salmon, the court refused to infer negligence due to lack of sufficient objective facts about how the fire started.
Criminal standard: Beyond a reasonable doubt.
Two cardinal rules from R v Blom 1939 AD 188:
Illustrative Case: In S v Reddy 1996, the SCA confirmed that courts must evaluate the cumulative impact of circumstantial evidence, avoiding piecemeal analysis. The court found that the only reasonable inference was guilty knowledge.
In contempt cases, Fakie NO v CCII Systems (2006) is the leading authority. It affirms:
The use of inferences in South African law is governed by careful reasoning, grounded in evidence. In civil cases, the most probable inference suffices. In criminal or contempt cases, guilt must be the only reasonable inference. Through cases like R v Blom, S v Reddy, and Fakie, South African courts maintain a balance between effective legal reasoning and safeguarding against injustice.
For legal professionals, understanding how and when courts draw inferences is crucial in both presenting and challenging circumstantial evidence.