This volume explores the main areas of legal development under the so-called 'Area of Freedom, Security, and Justice (AFSJ) 'which was introduced into European law under the Treaty of Amsterdam of 1997. It examines the main subject-matter of the new AFSJ: migration, family reunion, asylum, police co-operation, and co-operation in matters of criminal law and criminal procedure, and includes discussion of the future of the AFSJ against the background of the current drafting of a first Constitution for the European Union.