Orreal v The Queen

The High Court of Australia considered an appeal by Orreal against a conviction for murder. The central dispute concerned the admissibility of evidence obtained through a search of the appellant's mobile phone, which had been seized following his arrest. The prosecution sought to rely on digital forensic material extracted from the phone, arguing it was relevant to establishing the appellant's intent and motive.

The primary legal issue before the High Court was whether the search of the appellant's mobile phone, conducted without a warrant, was lawful under the *Crimes Act 1914* (Cth) and the common law. Specifically, the Court had to determine if the police had the necessary authority to conduct such a search incidental to arrest, and if the scope of that search exceeded lawful bounds.

The Court reasoned that the power to search a person incidental to arrest under the *Crimes Act* and at common law is limited to what is reasonably necessary to prevent the escape of the arrested person, to avoid the destruction of evidence, or to ensure the safety of the police or the public. Applying this principle, the Court found that the search of the mobile phone was not reasonably incidental to the arrest. The nature of a mobile phone, containing vast amounts of personal information, meant that a search of its contents went beyond the limited purposes for which a search incidental to arrest is permitted. The Court held that a warrant would generally be required for such a search, absent exceptional circumstances not present in this case.

The High Court allowed the appeal, quashed the conviction, and ordered a new trial.