Campbell v The State of Western Australia

In the matter of Campbell versus the State of Western Australia, the defendant appealed against the trial judge's decision to deny a separate trial on the grounds that the criminal charges against him were interrelated with those of his co-accused. The case was heard in the Supreme Court of Western Australia. The defendant argued that the doctrine of joint criminal enterprise or common purpose at common law should apply, and that section 7(a) of the Criminal Code (WA) incorporated this doctrine.

The central issue before the court was whether section 7(a) of the Criminal Code (WA) included the doctrine of joint criminal enterprise or common purpose at common law. The defendant argued that the trial judge's decision to deny a separate trial was an error of law as it failed to recognise the applicability of the doctrine of joint criminal enterprise. The State of Western Australia contended that the trial judge's decision was correct and that the doctrine of joint criminal enterprise was not incorporated into section 7(a) of the Criminal Code (WA).

The court held that section 7(a) of the Criminal Code (WA) did not incorporate the doctrine of joint criminal enterprise or common purpose at common law. The court found that the doctrine of joint criminal enterprise was not a recognised part of the criminal law in Western Australia and that the trial judge's decision to deny a separate trial was not an error of law. The court held that the charges against the defendant and his co-accused were interrelated and that a separate trial would not be in the interests of justice.

The court dismissed the defendant's appeal and upheld the trial judge's decision to deny a separate trial. The defendant's conviction and sentence were affirmed.