The European Court of Justice (hereinafter the ECJ) is an institution of the European Union, which the Constitutional Treaties have entrusted to ensure the correct interpretation and application of European law. The Member States Representatives, being present at the negotiation on signing the Treaty of Paris deemed the Court of Justice as the true body to supervise the legality of acts issued by High Authority and the Special Council of Ministers, aiming to assure, at the same time, the balance between these institutions and member states, and also to guarantee the Economic Coal and Steel Community authorities’ non-interference in the fields falling under the sovereignty of member states