Regina v Lever

The case of Regina v Lever involves the defendant, Lever, who was accused of murdering his spouse through prolonged beating. The case was heard in the Supreme Court of Australia, where Lever appealed against his murder conviction and sentence. Lever's defence centred on the claim of diminished responsibility due to his background of violence and a history of mental health issues. The jury, however, rejected this defence and found Lever guilty of murder.

The primary legal issue before the court was whether Lever's diminished responsibility should have been accepted, despite the jury's rejection. The court had to determine if the Crown psychiatrist's reversal of opinion after the verdict should have any bearing on the case, given that this reversal occurred after the jury had already reached its decision. Additionally, the court examined the impact of Lever's background of violence and mental health issues on his capacity to control his actions at the time of the offence.

The court held that the psychiatrist's reversed opinion, while informative, did not alter the jury's verdict, which was final and binding. The court emphasised the importance of the jury's role in assessing the credibility of expert evidence and the weight to be given to it. The background of violence and mental health issues were considered in the sentencing phase, but they did not negate the gravity of the crime or provide a defence against the murder charge. The court ultimately upheld the conviction and sentence, affirming the jury's decision on the basis that the evidence presented was sufficient to prove murder beyond reasonable doubt.