Case C-305/05: Judgment of the Court (Grand Chamber) of 26 June 2007 (reference for a preliminary ruling from the Cour constitutionnelle (formerly Cour d'arbitrage) (Belgium)) — Ordre des barreaux francophones and germanophone, Ordre français des avocats du barreau de Bruxelles, Ordre des barreaux flamands, Ordre néerlandais des avocats du barreau de Bruxelles v Conseil des Ministres (Directive 91/308/EEC — Prevention of the use of the financial system for the purpose of money laundering — Obligation on lawyers to inform the competent authorities of any fact which might be an indication of money laundering — Right to a fair trial — Professional secrecy and the independence of lawyers)