35As regards application of the principle of effectiveness, the Court has held that every case in which the question arises as to whether a national procedural provision makes the application of European Union law impossible or excessively difficult must be analysed by reference to the role of that provision in the procedure, its conduct and its special features, viewed as a whole, before the various national bodies. For those purposes, account must be taken, where appropriate, of the basic principles of the domestic judicial system, such as protection of the rights of the defence, the principle of legal certainty and the proper conduct of procedure (Case C-312/93 Peterbroeck [1995] ECR I-4599, paragraph 14; Unibet, paragraph 54; Case C-40/08 Asturcom Telecomunicaciones [2009] ECR I-9579, paragraph 39; and Pontin, paragraph 47).
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