Trade Practices Commission v Santos Limited

The applicant, the Trade Practices Commission, sought special leave to appeal to the High Court of Australia from a decision of the Full Court. The underlying dispute concerned alleged contraventions of section 50 of the *Trade Practices Act 1974* (Cth) by the respondents, Santos Limited and Sagasco Holdings Limited. The Commission argued that the case was of public importance due to the significant public shareholdings involved and the widespread impact on consumers of natural gas and products derived from it.

The primary legal issue before the High Court was whether the lower courts had erred in their application of principles concerning the grant of injunctions and the consideration of public interest in such applications, particularly in the context of alleged breaches of section 50. The Commission contended that the courts below failed to adequately recognise or take into account the interests of consumers, which it argued were central to the enforcement of competition law.

The Commission's argument focused on the perceived misinterpretation of the impact of section 50 infringements. It was submitted that the lower courts, by approving earlier judicial reasoning, had incorrectly concluded that an infringement of section 50 did not cause immediate harm to any person, but merely disturbed a desirable state of economic organisation. The Commission countered that the public interest in enforcing anti-trust laws is fundamentally derived from the private interests of consumers, who are directly affected by anti-competitive conduct. This was contrasted with the view that such infringements only result in a disturbance of economic organisation.