The exploitation of labour is one of the most widespread forms of so-called "modern slavery" and, therefore, there is a need for an in-depth analysis in order to aid the development of a successful counter-strategy. >With regard to specific nations, the book focuses on Italy, France, Spain and the UK, with an analysis of how supranational obligations to criminalize certain activities have been implemented, as well as including an evaluation of the adequacy of the incriminating provisions that have been adopted at national level in order to effectively combat the complex phenomenon of modern slavery.