55Under Article 58(1)(b) EC, Article 56 EC is without prejudice to the right of a Member State to take all requisite measures to prevent infringements of national law and regulations, in particular in the field of taxation. The Court thus recognised that the need to guarantee the effectiveness of fiscal supervision constitutes an overriding requirement of general interest capable of justifying a restriction on the exercise of freedom of movement guaranteed by the Treaty (Case C-250/95 Futura Participations and Singer [1997] ECR I-2471, paragraph 31; Case C-315/02 Lenz [2004] ECR I-7063, paragraphs 27 and 45; and Case C-386/04 Centro di Musicologia Walter Stauffer [2006] ECR I-8203, paragraph 47).
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