For a conviction based on the evidence of a single witness to be sustained, the evidence must be clear and satisfactory in every material respect. While child witnesses in sexual offence cases require sensitive handling and their evidence should not be rejected merely due to minor inconsistencies attributable to age, trauma, or memory difficulties, material contradictions and inconsistencies that go to the heart of the charges cannot be overlooked. Multiple material contradictions regarding the timing, location, sequence of events, and circumstances of alleged offences, combined with contradictions between the complainant's evidence and that of other state witnesses on crucial points, render the evidence unsatisfactory and insufficient to prove guilt beyond reasonable doubt. The prosecution of sexual offences requires meticulous preparation, patient and sensitive presentation of evidence, and avoidance of leading questions that may compromise both the quality of the evidence and the fairness of the trial to the accused. While courts must be alive to the difficulties faced by child victims of sexual abuse, the constitutional rights of accused persons to a fair trial and the requirement of proof beyond reasonable doubt cannot be displaced by sympathy for complainants. Fresh evidence that emerges after conviction will only be admitted on appeal in exceptional circumstances where it is weighty, material, credible, and practically conclusive; evidence from a foster parent that contradicts earlier testimony and is not conclusive on any issue does not meet this standard.