Hornsby Shire Council v Commonwealth of Australia & Anor

The High Court of Australia considered a dispute between Hornsby Shire Council and the Commonwealth of Australia, concerning the validity of a notice issued by the Commonwealth under section 39B of the *Judiciary Act 1903* (Cth) to remove proceedings from the Supreme Court of New South Wales to the Federal Court of Australia. The Council had commenced proceedings in the Supreme Court seeking declarations and injunctions against the Commonwealth and a private company, alleging breaches of environmental protection legislation and seeking to restrain the company from carrying out certain development works. The Commonwealth, asserting that the proceedings involved the exercise of federal jurisdiction, issued the notice to remove the matter.

The central legal issue before the High Court was whether the notice issued under section 39B of the *Judiciary Act* was a valid exercise of power, specifically whether the proceedings initiated by the Council in the Supreme Court truly involved the exercise of federal jurisdiction such that removal to the Federal Court was permissible. This required the Court to determine the nature of the jurisdiction invoked by the Council's claims, particularly in relation to the *Environment Protection and Biodiversity Conservation Act 1999* (Cth) and whether the Supreme Court was exercising federal jurisdiction when entertaining those claims.

The Court reasoned that the jurisdiction invoked by the Council's claims, which sought to enforce rights and obligations arising under Commonwealth legislation, was federal in nature. Consequently, the Commonwealth was empowered by section 39B of the *Judiciary Act* to remove proceedings involving the exercise of federal jurisdiction from a State Supreme Court to the Federal Court. The Court affirmed that the *Judiciary Act* provides a mechanism for the transfer of federal jurisdiction to the Federal Court, and that the nature of the claims brought by the Council brought them within the scope of this provision.

The High Court dismissed the Council's application, upholding the validity of the notice issued by the Commonwealth under section 39B of the *Judiciary Act*.