Hanna v R

The appeal in Hanna v R was brought by the defendant against his sentence, following a guilty plea to armed robbery under section 97(1) of the Crimes Act 1900. The central issue was whether the incompetence of the defendant's counsel during the sentencing proceedings resulted in a miscarriage of justice. The defendant argued that his counsel's failure to adequately challenge the prosecution's evidence and to present mitigating factors led to an unjust sentence.

The court had to determine whether the test for a miscarriage of justice in the context of a plea of guilty hinged on the objective circumstances of the case, or if it also required an assessment of the subjective competence of the counsel. The court needed to examine whether the defendant's counsel's actions, or lack thereof, were so deficient that they deprived the defendant of a fair sentencing process. This involved scrutinising the role of counsel in the context of a guilty plea and the admissibility of evidence pertaining to the instructions given to counsel.

The court held that the test for a miscarriage of justice does not solely depend on the objective circumstances of the case but also requires an evaluation of the competence of counsel. The court found that the defendant's counsel had indeed been incompetent, failing to challenge the prosecution's evidence and to present mitigating factors, which significantly impacted the sentencing. Consequently, the court concluded that a miscarriage of justice had occurred. The appeal was allowed, and the case was remitted for resentencing.