Judgment_paragraph 59 · Edward Cussens and Others v T. G. Brosman (C-251/16)

59Accordingly, it is for the national court to determine, in accordance with the rules of evidence of national law, provided that the effectiveness of EU law is not undermined, whether the constituent elements of an abusive practice are present in the case before it. However, the Court, when giving a preliminary ruling, may, where appropriate, provide clarification designed to give the national court guidance in its interpretation (see, inter alia, judgment in Halifax, paragraphs 76 and 77, and judgment of 17 December 2015, WebMindLicenses, C‑419/14, EU:C:2015:832, paragraph 34).