Betfair Pty Limited (ACN 110 084 985) & Anor v State of WA

Betfair Pty Limited and another party (the applicants) sought judicial review of a decision by the State of Western Australia (the respondent) to refuse to grant them a licence to operate a betting exchange in Western Australia. The applicants argued that the respondent's refusal was based on an improper consideration of irrelevant factors and a failure to consider relevant factors, thereby constituting an error of law. The matter came before the High Court of Australia.

The central legal issue before the High Court was whether the respondent's decision to refuse the betting exchange licence was vitiated by an error of law, specifically by taking into account irrelevant considerations and failing to take into account relevant considerations. This involved an examination of the scope of the decision-maker's discretion under the relevant legislation and the principles of administrative law governing the exercise of such discretion.

Callinan J, in his judgment, found that the respondent had indeed taken into account irrelevant considerations in refusing the licence. His Honour reasoned that the respondent's concerns about the potential impact of a betting exchange on the integrity of racing and the potential for money laundering were not matters that the legislation empowered it to consider when determining licence applications. The legislation focused on the applicant's suitability and the proposed operation's compliance with regulatory requirements, not on broader policy concerns that were outside the statutory remit. Consequently, the decision was found to be affected by an error of law.

The High Court ordered that the decision of the respondent refusing the licence be quashed.