Director of Public Prosecutions Act 1973 (TAS)

The matter before the court was a challenge to the constitutionality of section 18 of the Director of Public Prosecutions Act 1973 (TAS). The key issue before the court was whether the amendment to the Act, which made the Director of Public Prosecutions the sole public prosecutor in Tasmania, was inconsistent with the separation of judicial power as required by section 71 of the Constitution. The court needed to determine if the amendment allowed the Director to exercise both prosecutorial and judicial functions, which could potentially conflict with the separation of powers doctrine. The court also considered whether the amendment affected the independence of the Director's office in a way that was inconsistent with the Constitution.

The court concluded that the amendment did not violate the separation of judicial power. It reasoned that while the Director of Public Prosecutions has both prosecutorial and judicial functions, these roles do not inherently conflict with the separation of powers doctrine. The court found that the Director's judicial functions, such as deciding whether to prosecute or discontinue proceedings, are part of the prosecutorial role and do not amount to the exercise of judicial power as defined by the High Court. Furthermore, the court held that the amendment did not undermine the independence of the Director's office, as the Director remains subject to legal constraints and oversight mechanisms that protect their independence. Therefore, the amendment was consistent with the Constitution.

The court's final order was that section 18 of the Director of Public Prosecutions Act 1973 (TAS) is not unconstitutional.