Communautarization of the justice and home affairs policy sector: a historical institutionalist approach

This thesis analyzes the gradual process of supranationalization of the European Union Justice and Home Affairs policy area. It argues that the European Commission, by taking advantage of both its position in the European political arena and of the changes in the post Cold War external environment, played a significant role in the development towards more Community competence in this high politics, hard case policy area. Using the Historical Institutionalist theoretical framework, this research looks at this policy sector in a timely perspective and explains why Member States of the European Union gradually lost control over the decision-making process and allowed supranational decision-making rules in this area which is closely related to the question of sovereignty and statehood.