European Union – Employment. The Court of Justice of the European Union made a preliminary ruling concerning the interpretation of the principle of sincere cooperation in art 10 EC in conjunction with the Conditions of Employment of other Servants of the European Communities, established by Regulation (EEC, Euratom, ECSC) No 259/68, as amended. The request had been made between the Belgian Office national de l'emploi and Ms Melchior concerning that body's refusal to grant Ms Melchior unemployment benefit.