Following on from the earlier edited collection, Loss of Control and Diminished Responbility, this book is the first volume in the Substantive Issues in Criminal Law series. It serves as a leading point of reference in the area relating to participation in crime and identifies the need for a consistent approach to the doctrinal and theoretical underpinnings of complicity liability. With a section on the UK analysing points of current interest, the book also has a large comparative section dealing with foreign jurisdictions and examines on the basis of a unified research grid how different legal systems treat core issues of participation in the context of criminal law. This book is a valuable reference resource for those in the criminal justice community in the UK and abroad and for academics, the judiciary and policy-makers.