McKenzie v The Commonwealth

The High Court of Australia heard an appeal by the applicant, McKenzie, against the Commonwealth of Australia. The dispute concerned the validity of a notice issued by the Commonwealth under section 39B(1) of the Judiciary Act 1903 (Cth) to the applicant, requiring him to attend before an officer of the Australian Federal Police for examination concerning an alleged contravention of the Crimes (Traffic in Heroin) Act 1980 (Cth). McKenzie sought a declaration that the notice was invalid and that the Commonwealth had no power to issue it.

The central legal issue before the High Court was whether section 39B(1) of the Judiciary Act, which confers original jurisdiction on the Federal Court of Australia in matters arising under the laws of the Commonwealth, could be invoked by the Commonwealth itself to compel a citizen to attend for examination in relation to a potential criminal offence. Specifically, the Court had to determine if the Commonwealth could use this provision as a basis for issuing such a notice, or if it was intended for use by individuals seeking to enforce Commonwealth law.

Gibbs C.J. reasoned that section 39B(1) of the Judiciary Act confers jurisdiction on the Federal Court, but it does not grant power to the executive government to compel a person to attend for examination in the absence of specific statutory authority. His Honour found that the notice issued by the Commonwealth was not authorised by any provision of the Crimes (Traffic in Heroin) Act 1980 or any other Commonwealth legislation. The power to compel attendance for examination in criminal investigations is a significant one that must be clearly and unambiguously conferred by statute, and such a conferral was absent in this instance.

The High Court allowed the appeal and declared that the notice issued by the Commonwealth to the applicant was invalid.