Alley v Gillespie

In *Alley v Gillespie*, the plaintiff, acting as a common informer, commenced proceedings in the original jurisdiction of the High Court of Australia against the defendant, a Member of the House of Representatives. The dispute concerned the defendant's alleged ineligibility to sit as a Member, which the plaintiff sought to establish through a common informer action under the *Common Informers (Parliamentary Disqualifications) Act 1975* (Cth). The plaintiff's action aimed to recover a statutory penalty on proof of the defendant's breach of parliamentary disqualification provisions.

The High Court was required to determine two principal legal issues. First, whether the High Court possessed the jurisdiction to decide, within the context of a common informer action, whether the defendant was a person declared by the Constitution to be incapable of sitting as a Member of the House of Representatives for the purposes of the *Common Informers (Parliamentary Disqualifications) Act 1975* (Cth). Second, if the Court had such jurisdiction, whether it should issue subpoenas to assist the plaintiff in proving the defendant's ineligibility.

The Court reasoned that section 46 of the Constitution creates a cause of action for a common informer but does not confer jurisdiction on any court to determine the elements of that cause of action. Instead, the source of jurisdiction must be found elsewhere, either in State or Commonwealth law. In contrast, section 47 of the Constitution specifically addresses the authority to decide questions of a Senator's or Member's qualification, vesting this exclusive power in the respective Houses of Parliament. Therefore, the High Court concluded that it lacked jurisdiction in a common informer action to determine a Member's constitutional ineligibility.

Consequently, the High Court answered the first question in the negative, rendering the second question unnecessary to answer. The Court ordered that the plaintiff's proceeding under the *Common Informers (Parliamentary Disqualifications) Act 1975* (Cth) be stayed until the question of the defendant's eligibility to sit is determined by the appropriate body, namely the House of Representatives.