The appellant was convicted of an alleged offence related to illegal gold prospecting. The prosecution relied primarily on the evidence of one key state witness, Emmanuel Zvawanda, who claimed to have seen the accused committing the offence. A second witness, Makanganise Maunganidze, did not see the appellant committing the offence. The appellant's defence was that he was walking from Madala Site compound Queens Mine, Inyathi to Macibi Plot when he met the first state witness (a security guard employed by Fawcett Security Company) who stopped him and accused him of prospecting for gold. The appellant denied the allegations, whereupon the security guard drew his gun and threatened to shoot him, forcing him to collect a pick, shovel and ore. The trial magistrate convicted the appellant, finding the state witnesses credible and corroborated, and rejecting the appellant's defence as "very improbable" without explaining why it was false beyond reasonable doubt.
The appeal was upheld and the conviction was set aside.
A conviction based primarily on the evidence of a single witness without corroboration is unsafe where: (1) the trial court fails to articulate why the accused's version is rejected beyond finding it improbable, without being satisfied beyond reasonable doubt that it is false; (2) there is a reasonably possible truth to the accused's explanation; (3) the trial court adopts a 'boxing match approach' merely comparing credibility without proper analysis; and (4) alleged oral confessions or statements to persons in authority are admitted without compliance with procedural safeguards under section 242(1) of the Criminal Procedure and Evidence Act. The Rex v Difford principle requires that even an improbable explanation from an accused must lead to acquittal unless the court is satisfied beyond reasonable doubt that it is false.
BERE J made observations about the temptation for magistrates to 'glorify the credibility of a witness in the witness box' particularly where determining a case based on single witness testimony, noting the 'easy way out' of relying on their vantage position knowing appeal courts cannot enjoy the same opportunity to assess demeanor. The judge also commented that the appellant's failure to explain why state witnesses were lying should not be held against him, citing Joseph Mbanje v The State. Further, the court observed that evidence in mitigation after conviction should not be used against an appellant on appeal, as one is not expected to continue protesting innocence after verdict and must deal with grievances on appeal. The court noted that an unrepresented accused who effectively cross-examines witnesses and maintains his defence demonstrates credibility that cannot be dismissed without good reason.
This case reinforces fundamental principles of Zimbabwean criminal procedure and evidence law that are equally applicable in South African law: (1) The requirement for extreme caution when relying on single witness testimony; (2) The application of the Rex v Difford principle that an accused's explanation need not be believed, but if reasonably possibly true, must result in acquittal; (3) The prohibition on the 'boxing match approach' to credibility assessment; (4) The requirement that trial courts must articulate clear reasons for rejecting an accused's version beyond merely finding it improbable; (5) The strict procedural requirements for admitting statements (whether oral or written) made to persons in authority. The judgment emphasizes the duty of trial courts to properly analyze evidence and give accused persons the benefit of doubt where two diametrically opposed versions cannot be reconciled with certainty.