38As the Court has repeatedly observed, the application of professional rules to lawyers, in particular those relating to organization, qualifications, professional ethics, supervision and liability, ensures that the ultimate consumers of legal services and the sound administration of justice are provided with the necessary guarantees in relation to integrity and experience (see to that effect, the judgments in Case 292/86 Gullung v Conseils de l'Ordre des Avocats du Barreau de Colmar et de Saverne [1988] ECR 111 and Van Binsbergen, cited above).
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