In a recent decision1, the Competition Tribunal (the Tribunal) considered and rejected the first attempt by a private party to bring a case before the Tribunal under the new “public interest” test. Parliament has been slowly expanding the types of cases that private applicants (rather than the Commissioner of Competition) can bring before the Tribunal: until the summer of 2025, private parties needed to be directly affected by the challenged conduct; last summer, amendments to the Competition Act (the Act) came into force adding a “public interest” branch to the private access provisions2. The Tribunal outlined the test that it will apply when determining whether to allow public interest applicants to bring cases before it.
The Tribunal largely adopted the public interest standing test from constitutional litigation but made modifications to make the test fit the context and purpose of the Competition Act. The Tribunal noted that due to limited resources, it needs to be scrupulous to screen out unmeritorious, vexatious and strategic claims at an early stage.
The Tribunal was also clear that, in its view, Parliament did not intend for the public interest branch of the leave test to create a cause of action for monetary damages or a class actions regime before the Tribunal. This will likely be an area for further development in the case law as many of the cases that have been filed by private parties ask the Tribunal to order that respondents pay, in the language of the Act, “an amount, not exceeding the value of the benefit derived from the conduct that is subject of the order, to be distributed among the applicant and any other person affected by the conduct”3.
In deciding whether to exercise its discretion to grant leave, the Tribunal will weigh whether:
The Tribunal denied the applicant leave to bring an application alleging abuse of dominance and anti-competitive agreements, finding that:
The Tribunal awarded no costs, recognizing that this was the first public interest leave decision. To date, costs on leave applications under the private access provisions have been nominal4.
We expect further guidance on the public interest leave test this year. Several other public interest leave applications have been commenced since the summer of 2025, which will quickly provide the Tribunal with additional opportunities to develop its view of these cases. The Federal Court of Appeal may be given the opportunity to comment on the test if the applicant in this case appeals the Tribunal’s decision.
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