174Consequently, where it appears that the private operator test could be applicable, the Commission is under a duty to ask the Member State concerned to provide it with all relevant information enabling it to determine whether the conditions governing the applicability and the application of that test are met, and it cannot refuse to examine that information unless the evidence produced has been established after the adoption of the decision to make the investment in question (see, to that effect, judgments of 5 June 2012, Commission v EDF, C‑124/10 P, EU:C:2012:318, paragraph 104, and of 25 June 2015, SACE and Sace BT v Commission, T‑305/13, EU:T:2015:435, paragraph 96).