Case C-660/21, K.B. and F.S. (Raising ex officio of an infringement in criminal proceedings): Judgment of the Court (Grand Chamber) of 22 June 2023 (request for a preliminary ruling from the Tribunal correctionnel de Villefranche-sur-Saône — France) — Criminal proceedings against K.B., F.S. (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)