The third pillar of the EU introduced by the Maastricht Treaty, Justice and home affairs, have rapidly developed as a core priority in the European integration process. The article will examine the area particularly in terms of changes brought by the Lisbon Treaty. After explaining the scope of the area of freedom, security and justice, the article examines general provisions of the Lisbon Treaty. The article argues the area with respect to the trends of supranationalism and intergovernmental ism, jurisdiction of the Court of Justice, the new power structure and its external dimension.Keywords: Lisbon Treaty, Area of Freedom, Security and Justice, Supranationalism, Intergovernmentalism