Court of Justice 16 September 1997, C-158/96 (Nicolas Decker v Caisse de maladie des employés privés.)

Opinion of the Advocate-General Opinion of the Advocate-General 1 The implementation of the single market, that area without internal borders within which the free movement of goods, persons, services and capital is ensured, ought by now to have been completed and to constitute one of the cornerstones and hallmarks of the Community.