Judgment of the Court (Grand Chamber) of 22 June 2023.#Criminal proceedings against K.B. and F.S.#Request for a preliminary ruling from the Tribunal correctionnel de Villefranche-sur-Saône.#Reference for a preliminary ruling – Area of freedom, security and justice – Judicial cooperation in criminal matters – Directive 2012/13/EU – Articles 3 and 4 – Obligation for the competent authorities to inform suspects and accused persons promptly of their right to remain silent – Article 8(2) – Right to invoke a breach of that obligation – National legislation prohibiting the trial court from raising such a breach of its own motion – Articles 47 and 48 of the Charter of Fundamental Rights of the European Union.#Case C-660/21.