Case C-66/20: Judgment of the Court (Fourth Chamber) of 2 September 2021 (request for a preliminary ruling from the Procura della Repubblica di Trento — Italy) — Proceedings relating to the recognition and execution of a European Investigation Order (EIO) concerning XK (Reference for a preliminary ruling — Article 267 TFEU — Definition of ‘court or tribunal of a Member State’ — Criteria — Procura della Repubblica di Trento (Public Prosecutor’s Office, Trento, Italy) — Inadmissibility of the request for a preliminary ruling)