Until recently, throughout the European Union's integration process, public order and internal security matters have been marked by a concern and respect for the national sovereignty of the EU Member States. Member States enjoyed their respective regulatory autonomy, as public order and internal security matters were dealt with at the EU level merely on the basis of the internal market logic. This is particularly evident in Articles 45(3) and 52 of the Treaty on the Functioning of the European Union (TFEU). These Articles establish the exceptions of public policy and public security as grounds that may be invoked by the Member States to limit the fundamental right to free movement. These grounds have been primarily viewed as deriving from impediments to the creation of the common market.