'Combating' irregular migration is one of the key challenges to migration management at EU level. This book addresses one of the most pressing structural problems regarding the EU's return policy: the low return rate of irregularly staying migrants. In this regard the EU Return Directive obliges Member States to issue a return decision, yet only 40% of such decisions are enforced annually. Moreover, despite the political and legal efforts, the EU is not making any significant progress in enforcing the rules it has laid down in the Return Directive. The legislation of EU Member States may,...