Case C-174/22, EV (Drug precursors): Order of the Court (Seventh Chamber) of 1 December 2023 (request for a preliminary ruling from the Varhoven kasatsionen sad — Bulgaria) — Criminal proceedings against EV (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court of Justice — Drug precursors — Framework Decision 2004/757/JHA — Article 2(1)(d) — Person involved in the transport and distribution of precursors used for the illicit production or manufacture of drugs — Regulation (EC) No 273/2004 — Scheduled substances — Article 2 — Concept of ‘operator’ — Article 8(1) — Circumstances suggesting that scheduled substances might be diverted for the illicit manufacture of narcotic drugs or psychotropic substances — Obligation to notify those circumstances — Concept of ‘circumstance’