Cases on ExcellentWiki - Legal Encyclopedia

Commonwealth v Tasmania (1983) — The Tasmanian Dam Case

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Commonwealth v Tasmania (1983) 158 CLR 1 — the Tasmanian Dam Case — is one of the most significant decisions in Australian constitutional law. The High Court upheld the Commonwealth’s power to implement the World Heritage Convention through legislation that prevented the construction of the Franklin Dam on the Gordon River in Tasmania. The decision dramatically expanded the external affairs power (s 51(xxix) of the Constitution) and established that the Commonwealth may implement international treaty obligations even where those obligations relate to matters otherwise within State legislative competence.

Love v Commonwealth; Thoms v Commonwealth (2020) — Aboriginal Australians and the Citizenship Power

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Love v Commonwealth; Thoms v Commonwealth (2020) 270 CLR 152 is a landmark decision of the High Court of Australia concerning the constitutional status of Aboriginal Australians. The Court held that Aboriginal Australians, as defined by the tripartite test of biological descent, self-identification, and community recognition, are not “aliens” within the meaning of s 51(xix) of the Constitution and therefore cannot be deported under the aliens power. The decision represents a significant constitutional recognition of Aboriginal and Torres Strait Islander peoples and limits the Commonwealth’s power over the citizenship status of Indigenous Australians.

Mabo v Queensland (No 2) (1992) — Native Title

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Mabo v Queensland (No 2) (1992) 175 CLR 1 is the most significant decision in Australian legal history. The High Court of Australia rejected the doctrine of terra nullius and recognised that the common law of Australia could accommodate a form of Indigenous landholding known as native title. The decision transformed Australian property law, prompted a comprehensive legislative response in the Native Title Act 1993 (Cth), and established the foundation for the recognition of Aboriginal and Torres Strait Islander peoples’ connection to land.

Momcilovic v The Queen (2011) — Human Rights and the Victorian Charter

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Momcilovic v The Queen (2011) 245 CLR 1 is the leading High Court authority on the operation of the Charter of Human Rights and Responsibilities Act 2006 (Vic) — Australia’s most comprehensive state human rights instrument. The case addressed the constitutional validity of the Victorian Charter, the interaction between the Charter and state criminal law, and the limits of the interpretive obligation imposed by s 32(1) of the Charter.

New South Wales v Commonwealth (2006) — The WorkChoices Case

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

New South Wales v Commonwealth (2006) 229 CLR 1 — the WorkChoices Case — is the High Court’s landmark decision on the scope of the corporations power (s 51(xx) of the Constitution). The decision upheld the Commonwealth’s Workplace Relations Amendment (Work Choices) Act 2005 (Cth), which relied almost entirely on the corporations power to establish a comprehensive federal industrial relations system covering the majority of Australian employers and employees.

Pape v Commissioner of Taxation (2009) — The Tax Bonus Case

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Pape v Commissioner of Taxation (2009) 238 CLR 1 — the Tax Bonus Case — is the High Court’s leading decision on the Commonwealth’s spending power and the constitutional limits on Commonwealth expenditure. The case arose from the Commonwealth’s fiscal stimulus package during the Global Financial Crisis (GFC) and established that the Commonwealth possesses a limited “nationhood power” to respond to national economic emergencies.

Facts

In response to the Global Financial Crisis of 2008–2009, the Commonwealth government enacted the Tax Bonus for Working Australians Act (No 2) 2009 (Cth), which provided for one-off payments of up to $900 to eligible taxpayers. The payments were designed to stimulate consumer spending and prevent a severe economic downturn.

The Engineers' Case (1920) — Constitutional Interpretation

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Amalgamated Society of Engineers v Adelaide Steamship Co Ltd (1920) 28 CLR 129 — the Engineers’ Case — is the foundational Australian constitutional case on the interpretation of federal powers. The High Court’s decision swept away the doctrines of implied immunity of instrumentalities and reserved state powers, adopting instead a text-based approach to constitutional interpretation that dramatically expanded the legislative authority of the Commonwealth Parliament.

Facts

The case arose from a claim by the Amalgamated Society of Engineers, a trade union, for an award under the Commonwealth Conciliation and Arbitration Act 1904 (Cth) against the Adelaide Steamship Company and a number of other employers, including the State of Western Australia and the State of South Australia (in respect of the operation of State-owned sawmills).

Williams v Commonwealth (2012) — The School Chaplains Case

Tue, 07 Jul 2026 00:00:00 +0000

Introduction

Williams v Commonwealth (2012) 248 CLR 156 — the School Chaplains Case — is the High Court’s most significant decision on the limits of the Commonwealth’s executive spending power. The case held that the Commonwealth cannot expend money without specific legislative authorisation where the expenditure is not incidental to a head of power under s 51 of the Constitution. The decision significantly curtailed the Commonwealth’s capacity to fund programs in areas of State responsibility.