This book offers a brand new point of view on immigration detention, pursuing a multidisciplinary approach and presenting new reflections by internationally respected experts from academic and institutional backgrounds. It offers an in-depth perspective on the immigration framework, together with the evolution of European and international political decisions on the management of immigration. Readers will be introduced to new international decisions on the protection of human rights, together with international measures concerning the detention of immigrants. In recent years, International Law and European Law have converged to develop measures for combatting irregular immigration. Some of them include the criminalization of illegally entering a member state or illegally remaining there after legally entering. Though migration has become a great challenge for policymakers, legislators and society as a whole, we must never forget that migrants should enjoy the same human rights and legal protection as everyone else.