New South Wales v Commonwealth (2006)

New South Wales v Commonwealth (also called the WorkChoices case) is a landmark decision of the High Court of Australia, which held that the federal government's WorkChoices legislation was a valid exercise of federal legislative power under the Constitution of Australia. In essence, the majority (Gleeson CJ, Gummow, Hayne, Heydon & Crennan JJ) found the Constitution's corporations power capable of sustaining the legislative framework, while the conciliation and arbitration and territories powers were also seen as supporting parts of the law.

Source: Wikipedia — New South Wales v Commonwealth (2006) (CC BY-SA 4.0)