29It should be noted in that regard that, according to the Court’s established case-law, under the principle of sincere cooperation laid down in Article 4(3) TEU, it is for the courts of the Member States to ensure judicial protection of a person’s rights under EU law, Article 19(1) TEU, moreover, requiring Member States to provide remedies sufficient to ensure effective legal protection in the fields covered by EU law (judgments of 8 November 2016, Lesoochranárske zoskupenie VLK, C‑243/15, EU:C:2016:838, paragraph 50, and of 9 February 2017, M, C‑560/14, EU:C:2017:101, paragraph 30 and the case-law cited).
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