Khan v R

The appellant, Khan, appealed against his sentence for a terrorism offence, specifically for attempting to murder a person by a knife attack, in which the victim survived. The appeal was heard in the High Court of Australia. The appeal centred on the severity of the sentence imposed, specifically whether it was manifestly excessive in relation to the objective seriousness of the crime. The appellant did not challenge the assessment of the objective seriousness but argued that the sentencing judge had erred by taking into account a non-causative psychiatric condition. The court considered whether the sentence was appropriate given the objective seriousness of the crime and whether any error in sentencing was an error of principle or unidentified error.

The High Court considered whether the sentencing judge erred by considering the appellant's psychiatric condition, which was not causative of the offending behaviour, and whether this constituted an error of principle. The court noted that the sentence was stern but not manifestly excessive given the objective seriousness of the crime. The court held that while the psychiatric condition was a relevant factor in mitigation, its inclusion did not lead to a manifestly excessive sentence. The court further held that there was no unidentified error in the sentencing process, and the sentence was appropriate in all the circumstances.

The High Court dismissed the appeal, holding that the sentence was not manifestly excessive and that any error in considering the psychiatric condition did not amount to an error of principle. The court confirmed that the sentence was stern but appropriate for the objective seriousness of the crime, and no substantial injustice had occurred. The decision reinforces the principle that a sentence may be considered appropriate even if it includes consideration of mitigating factors that are not directly causative of the offending behaviour.