Police Doorknocking in Comparative and Constitutional Perspective: Roy v O’Neill

Abstract

Roy v O’Neill, currently before the High Court of Australia, raises the question of whether a police officer can knock on a person’s front door to investigate them for potential criminal offending, in circumstances where the police officer has no explicit common law or statutory power to do so. In order to resolve that question, the High Court will need to develop, or at least refine, the common
law relating to trespass and implied licences. This column explores two issues relevant to the development of the common law in this area, namely: the approach taken to implied licences in other common law jurisdictions; and the influence, if any, that divergent state and territory legislative positions in this area should have on the development of the single common law of Australia.

Keywords: police powers, common law reasoning, federalism, statute and common law

JEL Classification: K00, K39