The Changing Role and Reception of International Law in Domestic Constitutional Law

Abstract

Abstract This chapter addresses the changing role and reception of international law into domestic constitutional jurisdictions in Latin America and Europe. It begins by presenting a descriptive analysis of the differences between Europe and Latin America. Despite the existence of the 'conventionality control' doctrine developed in Latin America by the Inter-American Court of Human Rights (ICtHR), the European context seems more complex and diverse due to the 'three spheres of human rights protection': the European Court of Human Rights (ECtHR), the European Court of Justice (ECJ), and the national constitutional courts. The chapter then argues that, despite the fact that the multilevel architecture of protection provides States with a large range of opportunities for improving the effective protection of human rights both in Europe and Latin America, in practice, the most relevant level of guaranteeing such protection still seems to be at the domestic constitutional level. After exploring the 'conventionality control' and the application of the 'constitutionality block' doctrine developed by the Colombian Constitutional Court, it turns to examine the 'margin of appreciation doctrine'. Paradoxically, this doctrine, introduced by the ECtHR, has recently regained power both in Europe and Latin America as a bedrock of the 're-birth' of nationalistic movement.