Mana v The State

On 1 March 2002, a robbery occurred at the Algoa Park Post Office in Port Elizabeth. A man initially approached the post office earlier in the day with a cardboard box inquiring about postage costs, but left stating he had no money. He returned at approximately 15:00 with what appeared to be the same box, and produced a firearm, threatening a clerk. He and accomplices gained access to the inner office, robbed the postmistress of over R30,000 in cash, and dispossessed a security guard of his .38 special firearm. The robbers fled, leaving the cardboard box behind on the counter. The box was secured as evidence and a palm print was lifted from the inside of the box by a fingerprint expert, but could not initially be matched to anyone. In 2006, four years after the robbery, the appellant was arrested on an unrelated charge and his palm and fingerprints were circulated within SAPS. A positive match was then established between the appellant's palm print and the print found inside the box. The appellant was charged with two counts of robbery with aggravating circumstances and one count of unlawful possession of a firearm. He pleaded not guilty but was convicted on all three charges in the Port Elizabeth Regional Court and sentenced to 15 years' imprisonment (concurrent) for the robbery charges and 3 years for the firearm charge.

• Whether circumstantial evidence consisting solely of a palm print found inside a cardboard box used in a robbery was sufficient to establish guilt beyond reasonable doubt
• Whether the evidence satisfied the test for sufficiency of circumstantial evidence as set out in R v Blom 1939 AD 188
• Whether the inference that the appellant was one of the participants in the robbery was the only reasonable inference to be drawn from the totality of the evidence

The appeal was upheld. The convictions and sentences were set aside.

Circumstantial evidence consisting solely of a palm print found on the inside of a cardboard box used in a robbery is insufficient to sustain a conviction where: (1) the evidence does not exclude the reasonable possibility that the accused's palm print came to be on the cardboard in innocent circumstances; (2) a piece of cardboard is by its nature a mobile object capable of use and re-use in the hands of diverse individuals; (3) there is no evidence establishing the origin of the box or excluding innocent handling prior to its criminal use; and (4) the inference that the accused was a participant in the robbery is not the only reasonable inference to be drawn from the totality of the evidence. For circumstantial evidence to found a conviction, the tests in R v Blom 1939 AD 188 must be satisfied - namely that the evidence must be consistent with the guilt of the accused and inconsistent with any other reasonable conclusion.

The court noted that while there is nothing wrong in principle with circumstantial evidence and it sometimes can be compelling, the present case was not such a case. The court observed that if the robbery was planned, as appeared to be the case, the robbers may well have conveyed the box with them to the post office, and the box may have travelled a considerable distance on that very day prior to its use in the robbery. The court's comment indicated that case stated as having 'no precedential significance' in the judgment header, though this is more of an administrative notation rather than traditional obiter dicta.

This case illustrates the strict application of the principles governing circumstantial evidence in South African criminal law. It demonstrates that even forensic evidence such as fingerprints or palm prints, while scientifically reliable, may be insufficient to secure a conviction when standing alone, particularly where innocent explanations for the presence of such evidence cannot be reasonably excluded. The case reinforces the requirement that for a conviction based on circumstantial evidence, the evidence must exclude every reasonable possibility consistent with innocence, as established in R v Blom. It serves as an important reminder that the mobility and capacity for re-use of objects bearing forensic evidence must be carefully considered when evaluating whether the evidence satisfies the criminal standard of proof beyond reasonable doubt.