Tieu v The Queen

The case of Tieu v The Queen involves an appeal by the accused, Tieu, against his conviction. The matter was heard in the High Court of Australia, which considered several key legal issues. The primary issue was whether the prosecution's cross-examination of Tieu regarding his prior convictions required explicit leave from the Court, and if so, whether this was properly obtained. Additionally, the court examined whether the trial judge was obliged to reject evidence pursuant to section 137 of the Evidence Act 1995 (NSW) if no objection was taken, and whether this section applies to credibility evidence. Another issue was whether the accused's challenge to the credibility of a prosecution witness opened a gateway for cross-examining Tieu, and if leave was granted as per section 104 of the Evidence Act 1995 (NSW).

The court's reasoning focused on the procedural requirements and the interplay between various provisions of the Evidence Act 1995 (NSW). It found that the prosecutor's cross-examination of Tieu about his prior convictions without leave of the Court did not necessarily invalidate the trial if no objection was made by counsel. The court considered whether the absence of an explicit grant of leave was necessary and whether rule 4 of the Criminal Appeal Rules applied. It concluded that the lack of an explicit leave requirement was not fatal if no objection was made. Regarding section 137, the court determined that this section does not apply to credibility evidence, thus the trial judge was not obliged to reject evidence if no objection was taken. Finally, the court found that the accused's challenge to the prosecution witness's credibility opened the gateway for cross-examining Tieu, and the necessary leave was effectively granted under section 104 of the Evidence Act 1995 (NSW).

The final orders of the court were to dismiss the appeal as it did not establish that the trial was vitiated by any procedural error warranting a new trial. The court held that the trial was fair and the accused's rights were not prejudiced by the prosecutor's cross-examination or the absence of an explicit leave requirement. Consequently, the conviction stood affirmed.