29As noted by the Advocate General in points 79 to 81 of his Opinion, under Article 9(1) of that regulation, Member States enjoy a margin of discretion concerning the choice of penalties which they adopt in order to ensure compliance with the obligation to declare laid down in Article 3 of that regulation, provided that a breach of that obligation can be penalised in a simple, effective and efficient way, and without the competent authorities necessarily having to take account of other circumstances, such as intention or recidivism.
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