Smethurst & Anor v Commissioner of Police & Anor

The High Court of Australia considered an appeal concerning the validity of search warrants issued under the *Crimes Act 1914* (Cth) and the admissibility of evidence obtained pursuant to those warrants. The applicants, Smethurst and another, sought to challenge the legality of the search of their premises and the subsequent seizure of documents and electronic devices by the Commissioner of Police and another respondent. The core of the dispute revolved around whether the warrants were lawfully issued and executed, and consequently, whether the evidence derived from the searches should be excluded from any potential proceedings.

The central legal questions before the High Court were whether the warrants were validly issued under section 3L of the *Crimes Act 1914* and, if not, what the consequences were for the admissibility of the seized evidence. Specifically, the Court had to determine whether the issuing officer had reasonable grounds to believe that the premises to be searched were, or were likely to be, used in or in connection with the commission of a federal offence, and whether the information provided to the issuing officer was sufficient to satisfy this requirement. Furthermore, the Court was required to consider the application of the exclusionary rule in relation to improperly obtained evidence.

The High Court held that the warrants were invalidly issued because the information before the issuing officer did not establish reasonable grounds to believe that the premises were, or were likely to be, used in connection with the commission of a federal offence. The Court emphasised that the issuing officer must be satisfied of this belief on reasonable grounds, which requires more than mere suspicion or a general belief that a crime might have occurred. The Court found that the information provided was insufficient to support such a belief, rendering the warrants defective. Consequently, the evidence obtained pursuant to these invalid warrants was excluded.