R v HG; R v WE (No 2)

In the case of R v HG; R v WE (No 2), the respondents, HG and WE, were being tried for various offences, including murder. The primary issue before the court was the admissibility of lay opinion evidence. Specifically, the court had to determine whether such evidence was necessary to obtain an adequate account or understanding of a perception or event, where the witnesses were able to give evidence of their own direct observations. The respondents sought to have the jury instructed that they could take into account the lay opinion evidence, but the trial judge ruled that the evidence should be excluded.

The court found that the test of necessity was not met in this case, as the witnesses were able to provide their own direct observations. The court held that where a witness is able to provide a detailed account of their observations, lay opinion evidence is not necessary to assist the jury in understanding the perception or event. The court also noted that the potential prejudicial effect of the lay opinion evidence outweighed any probative value it may have had. The court concluded that the trial judge's decision to exclude the evidence was correct.

The court's reasoning was based on the principle that lay opinion evidence should only be admitted where it is necessary to obtain an adequate account or understanding of a perception or event. In this case, the witnesses were able to provide detailed accounts of their observations, and the court found that the lay opinion evidence did not add anything of value to the case. The court also considered the potential prejudicial effect of the lay opinion evidence, which could have influenced the jury's decision-making.

The final orders of the court were that the appeal against conviction be dismissed, and the conviction and sentences of the respondents be upheld. The court found that the exclusion of the lay opinion evidence did not affect the safety of the respondents' convictions, as there was ample evidence to support the convictions. The court also noted that the trial judge had given the jury an appropriate direction on the assessment of witness credibility, which included the consideration of the reliability and consistency of the evidence.