Antoun v The Queen

The High Court of Australia heard an appeal from the Court of Criminal Appeal of New South Wales concerning allegations of apprehended bias by a trial judge. The appellants, brothers jointly charged with demanding money with menaces, argued that the judge, who sat alone without a jury, conducted the trial in a manner that gave rise to a reasonable apprehension of bias. The prosecution's case was strong, relying significantly on recorded statements made by one of the appellants, while the defence asserted an honest claim of right to the money demanded.

The central legal issue before the High Court was whether the conduct of the trial judge demonstrated apprehended bias, thereby rendering the trial unfair. This involved considering the standards of fairness and detachment expected of a judge presiding over a criminal trial, particularly when acting as the sole arbiter of fact and law. The Court also considered whether the strength of the prosecution's evidence, which the Court of Criminal Appeal had relied upon to dismiss the appeal, could overcome a finding of apprehended bias, potentially invoking the proviso to the relevant criminal appeal statute.

The High Court reasoned that a fundamental entitlement of an accused person is to an impartial tribunal, a right that reflects both common law principles and fundamental human rights. The Court found that the trial judge had "crossed the line" and that the trial did not conform to the law, thereby depriving the appellants of their right to an impartial hearing. While acknowledging the strength of the prosecution's case, the Court held that this did not negate the miscarriage of justice caused by the judge's conduct. The Court also noted that if the respondent wished to rely on the proviso to the criminal appeal statute, it should have been raised as a specific issue.

Consequently, the High Court allowed the appeal, quashed the convictions, and ordered a new trial.