26As regards, second, application of the principle of effectiveness, the Court has held that every case in which the question arises as to whether a national procedural measure makes the application of EU law impossible or excessively difficult must be analysed by reference to the role of that measure in the procedure, its conduct and its special features, viewed as a whole, before the various national bodies. In that context, it is necessary to take into consideration, where relevant, the principles which lie at the basis of the national legal system, such as the protection of the rights of the defence, the principle of legal certainty and the proper conduct of the proceedings (judgment in Sánchez Morcillo and Abril García, C‑169/14, EU:C:2014:2099, paragraph 34 and the case-law cited).
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