47Next, it is only where the Commission has adduced sufficient evidence to establish the existence of the alleged infringement that it is incumbent on the Member State to challenge in substance and in detail the information produced and the inferences drawn (see, by analogy, judgment of 28 March 2019, Commission v Ireland (System for collecting and treating waste water), C‑427/17, not published, EU:C:2019:269, paragraph 39 and the case-law cited).
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