Judgment of the Court (Fifth Chamber) of 12 February 2020.#Criminal proceedings against Nikolay Boykov Kolev and Others.#Request for a preliminary ruling from the Spetsializiran nakazatelen sad.#Reference for a preliminary ruling — Article 267 TFEU — Implementation of a preliminary ruling of the Court — Power of a higher court to impose an injunction relating to the detailed rules for implementation — Procedural autonomy of the Member States — Principle of effectiveness — Observance of the rights of the defence.#Case C-704/18.