Judgment_paragraph 38 · Criminal proceedings against Ömer Altun and Others (C-359/16)

38It is also clear from the obligations to cooperate arising from Article 4(3) TEU that those obligations would not be fulfilled — and the aims of Article 14(1)(a) of Regulation No 1408/71 and Article 11(1)(a) of Regulation No 574/72 would be thwarted — if the competent institution of the Member State in which the work is carried out were to consider that it was not bound by the E 101 certificate and made such workers subject to its own social security system (see, by analogy, judgments of 30 March 2000, Banks and Others, C‑178/97, EU:C:2000:169, paragraph 39 and the case-law cited, and of 27 April 2017, A-Rosa Flussschiff, C‑620/15, EU:C:2017:309, paragraph 40).