Carter Holt Harvey Woodproducts Australia Pty Ltd v The Commonwealth of Australia & Ors

The High Court of Australia considered a dispute between Carter Holt Harvey Woodproducts Australia Pty Ltd (CHH) and the Commonwealth of Australia, along with other respondents. The core of the dispute concerned the validity of certain notices issued under the *Environment Protection and Biodiversity Conservation Act 1999* (Cth) (EPBC Act) in relation to CHH's proposed timber processing facility in Tasmania. CHH sought judicial review of these notices, alleging they were invalid.

The central legal issues before the High Court were whether the delegate of the Minister for the Environment had acted unlawfully in issuing the notices, and whether the notices themselves were invalid. Specifically, the Court had to determine if the delegate had failed to consider relevant matters or taken irrelevant matters into account when issuing the notices, and if the notices were otherwise defective in a way that rendered them invalid.

The High Court found that the delegate had indeed failed to consider a crucial matter, namely the potential impact of the proposed facility on a listed threatened species, the Tasmanian masked owl. This failure meant that the delegate had not properly exercised the power conferred by the EPBC Act. Consequently, the notices issued were held to be invalid. The Court applied the principles of administrative law, particularly concerning the proper exercise of statutory power and the requirement for decision-makers to consider all relevant factors mandated by the relevant legislation.

The High Court allowed the appeal, quashed the notices issued by the delegate, and remitted the matter to the Federal Court for further orders consistent with the High Court's judgment.