51On several occasions, the Court has held that the authorities may not oblige a taxable person to undertake complex and far-reaching checks as to that person’s supplier, thereby de facto transferring their own investigative tasks to that person (see, to that effect, judgments of 21 June 2012, Mahagében and Dávid, C‑80/11 and C‑142/11, EU:C:2012:373, paragraph 65, and of 31 January 2013, Stroy trans, C‑642/11, EU:C:2013:54, paragraph 50).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.