State of Victoria & Anor v Sutton

The State of Victoria and the Chief Commissioner of Police (the appellants) appealed to the High Court of Australia against a decision of the Supreme Court of Victoria. The case concerned the validity of a search warrant issued under the *Drugs, Poisons and Controlled Substances Act 1981* (Vic) and the subsequent seizure of a large quantity of cannabis. The respondent, Mr. Sutton, argued that the warrant was invalid because it was not supported by sufficient evidence to establish reasonable grounds for believing that the premises to be searched contained drugs.

The High Court was required to determine whether the information placed before the issuing magistrate provided reasonable grounds for the belief that cannabis would be found at Mr. Sutton's property. Specifically, the court had to consider the nature and sufficiency of the evidence required to satisfy the "reasonable grounds" threshold for the issuance of a search warrant under the relevant Victorian legislation. This involved an examination of the evidentiary basis for the police informant's belief.

The majority of the High Court found that the information before the magistrate did not establish reasonable grounds for the belief that drugs would be found at the premises. The informant's affidavit relied on information from an informant whose reliability had not been adequately demonstrated, and the information itself was vague and lacked particularity. The court reiterated the principle that a belief in reasonable grounds must be based on facts and circumstances that would lead an ordinary and prudent man to form that belief, not merely on suspicion or conjecture. The information provided was insufficient to meet this standard, rendering the search warrant invalid and the subsequent seizure unlawful.