Joined Cases C-566/19 PPU and C-626/19 PPU: Judgment of the Court (First Chamber) of 12 December 2019 (requests for a preliminary ruling from the Cour d’appel, Rechtbank Amsterdam — Luxembourg, Netherlands) — Execution of European arrest warrants issued against JR (C-566/19 PPU) and YC (C-626/19 PPU) (Reference for a preliminary ruling — Urgent preliminary ruling procedure — Police and judicial cooperation in criminal matters — European arrest warrant — Framework Decision 2002/584/JHA — Article 6(1) — Concept of ‘issuing judicial authority’ — Criteria — European arrest warrant issued by the public prosecutor’s office of a Member State for the purpose of criminal proceedings)