Case C-514/17: Judgment of the Court (First Chamber) of 13 December 2018 (request for a preliminary ruling from the Cour d’appel de Liège — Belgium) — Execution of a European arrest warrant issued against Marin-Simion Sut (Reference for a preliminary ruling — Judicial cooperation in criminal matters — Framework Decision 2002/584/JHA — European arrest warrant — Article 4(6) — Grounds for optional non-execution of the European arrest warrant — Offence underlying the imposition of a custodial sentence in the issuing Member State being punishable in the executing Member State by fine only)