Case C-724/19: Judgment of the Court (Fourth Chamber) of 16 December 2021 (request for a preliminary ruling from the Spetsializiran nakazatelen sad — Bulgaria) — Criminal proceedings against HP (Reference for a preliminary ruling — Judicial cooperation in criminal matters — European Investigation Order (EIO) — Directive 2014/41/EU — Article 2(c)(i) — Concept of ‘issuing authority’ — Article 6 — Conditions for issuing an EIO — Article 9(1) and (3) — Recognition of an EIO — EIO seeking to obtain traffic and location data associated with telecommunications, issued by a public prosecutor designated as ‘issuing authority’ by the national measure transposing Directive 2014/41 — Exclusive competence of the judge, in a similar domestic case, to order the investigative measure indicated in that order)