Towards an Integrated (and Possibly Pan-European?) Prima Facie Legitimacy Test: Merging the Rechtsgut Theory, the Offensività Principle, and the Harm Principle

The Anglo-American harm principle, and its European counterparts – the legal goods theory and the offensività principle – attempt to provide an answer to the question of which conducts can be prima facie legitimately criminalised. Despite the historical, conceptual, and practical differences between these criminalisation approaches, they share important elements, particularly from a functional and operational perspective. By merging the key aspects of these theories, this work elaborates an instrument to assess the prima facie legitimacy of criminalisation – the Integrated Legitimacy Test – that embeds their essential elements and further conceptualises them. The Test strives to overcome some of the criticisms directed against the Anglo-American and European theories by narrowly defining their core elements and linking them to empirical evidence. Moreover, its transnational nature makes it suitable to feed the criminalisation debate at the European Union level.