R v LN; R v AW (No. 7)

In the case of R v LN; R v AW (No. 7), the Crown sought to adduce expert evidence in a murder trial against the two accused individuals. The legal dispute centred on whether this expert evidence should be excluded from the trial due to its non-inclusion in the supplementary expert report. The evidence in question was given during a voir dire, which is a preliminary examination of evidence to determine its admissibility. The court was required to decide if the evidence should be excluded because it was not part of the supplementary expert report.

The court examined the procedural and evidential rules governing expert evidence in criminal trials, specifically the requirement for supplementary expert reports to list all evidence that experts intend to rely on during their testimony. The court also considered the purpose of these rules, which is to ensure fairness and transparency in the proceedings by providing all parties with adequate notice of the evidence that will be presented. The court had to balance the need for these rules with the potential prejudice to the Crown's case if the evidence was excluded. Ultimately, the court determined that the evidence should not be excluded, as the rules were not strictly adhered to, and the exclusion of the evidence would not be just in the circumstances.

The court held that the expert evidence should be admitted because the failure to include it in the supplementary expert report was not significant enough to warrant exclusion. The court found that the evidence was relevant and that the defence had not been unfairly prejudiced by the omission. The Crown was therefore allowed to present the expert evidence in the trial. The court's decision was based on a careful consideration of the rules and their purpose, as well as the specific circumstances of the case. The court emphasised that while adherence to the rules is important, the ultimate goal is to ensure a fair trial. The final orders of the court allowed the expert evidence to be presented in the trial.