Ansari, HM v The Queen; Ansari, AAM v The Queen

The High Court of Australia considered appeals by HM Ansari and AAM Ansari against their convictions for conspiracy to import a commercial quantity of heroin. The appellants were convicted in the District Court of New South Wales, and their appeals to the Court of Criminal Appeal of New South Wales were dismissed. The central dispute concerned the admissibility of certain evidence, specifically recordings of conversations obtained through listening devices, and the proper application of the law relating to conspiracy.

The High Court was required to determine whether the trial judge erred in admitting the recordings of conversations obtained by listening devices, notwithstanding that the warrants authorising their use were issued by a magistrate who was not a judicial officer. Further, the Court had to consider whether the evidence, when viewed in its entirety, established beyond reasonable doubt that the appellants had entered into an agreement to import heroin, and whether the trial judge had adequately directed the jury on the elements of the offence of conspiracy.

The Court held that the warrants authorising the use of listening devices were invalid because they were issued by a person who was not a judicial officer, as required by the relevant legislation. Consequently, the evidence obtained through these devices was inadmissible. The Court reasoned that the principle of legality demanded strict compliance with statutory requirements for the authorisation of such intrusive surveillance. Given the inadmissibility of this crucial evidence, the Court concluded that the Crown could not prove the conspiracy beyond reasonable doubt.

The High Court allowed the appeals, quashed the convictions, and ordered that the appellants be discharged.