Case C-661/17: Judgment of the Court (First Chamber) of 23 January 2019 (Request for a preliminary ruling from the High Court (Ireland) — Ireland) — M.A., S.A., A.Z. v International Protection Appeals Tribunal, Minister for Justice and Equality, Attorney General, Ireland (Reference for a preliminary ruling — Asylum policy — Criteria and mechanisms for determining the Member State responsible for examining an application for international protection — Regulation (EU) No 604/2013 — Discretionary clauses — Assessment criteria)