Chief Commissioner of Police v Crupi

The High Court of Australia considered an appeal by the Chief Commissioner of Police against a decision of the Supreme Court of Victoria concerning the disclosure of documents in a criminal proceeding. The first respondent, Vincenzo Crupi, was charged with murder, and the Chief Commissioner sought to resist disclosure of certain documents on the grounds of public interest immunity. The core of the dispute involved approximately 600 pages of material, referred to as "PII material," the disclosure of which the Chief Commissioner argued would risk revealing the identity of an informer, known as "Informer Z," and endanger their safety.

The legal issues before the High Court were whether the primary judge had complied with the obligation under s 130(1) of the *Evidence Act 2008* (Vic) to provide adequate reasons for ordering the disclosure of the PII material, and whether the primary judge had properly conducted the required balancing exercise between the competing public interests. Section 130(1) mandates a weighing of the public interest in favour of disclosure against the public interest against disclosure. The Court of Appeal had previously dismissed an appeal from the primary judge's decision for want of jurisdiction.

The High Court found that the primary judge's reasons, which comprised only five paragraphs, were inadequate. The reasons failed to disclose any process of weighing the competing public interests as required by s 130(1) of the *Evidence Act 2008* (Vic). The primary judge's statement that the information "may be of substantial assistance to the defence" and was "likely to be of substantial assistance" did not demonstrate the necessary balancing exercise. Consequently, the High Court allowed the appeal, set aside the orders of the Supreme Court of Victoria, and remitted the matter to that court for determination.