MJH v The State of Western Australia

In the case of MJH v The State of Western Australia, the appellant was convicted of sexual offences against his stepdaughter. The dispute in this case revolved around the admissibility of certain evidence presented by the prosecution, as well as the credibility of the complainant's testimony. The case was heard in the Court of Appeal of Western Australia. The central issue the court had to decide was whether statements made by the complainant to her mother, five days after the alleged offences, were admissible as evidence, particularly in light of the complainant's denial of making such statements. The court also had to consider the broader issue of whether the mother's evidence about these statements was collateral and whether it fell within any exceptions to the collateral evidence rule.

The court addressed the issue of the complainant's statements to her mother by first examining the "collateral evidence rule," which generally prohibits the admission of evidence that merely corroborates or supports another witness's testimony. The court noted that this rule is intended to prevent the bolstering of a witness's credibility. However, exceptions to this rule exist, such as the "bias" exception, which allows evidence of statements that could reveal a witness's bias or motive to lie. The court found that the mother's evidence was not strictly collateral as it pertained to the credibility of the complainant's testimony. Additionally, the court considered whether the complainant had a motive to make false allegations, given her relationship with her mother, but concluded that this factor alone did not justify admitting the mother's evidence. Ultimately, the court held that the evidence was inadmissible as it did not fall within any recognised exception to the collateral evidence rule.

The court further considered the appellant's contention that the complainant's evidence was inconsistent with the mother's statements and that this inconsistency should have led to a different verdict. However, the court found no factual inconsistency that warranted a different outcome. The court concluded that the trial judge had correctly assessed the credibility of the evidence and had not erred in convicting the appellant. Therefore, the appeal was dismissed. The final orders of the court upheld the conviction, finding no basis to overturn the trial judge's decision regarding the admissibility of the contested evidence.