Judgment of the Court (Grand Chamber) of 30 April 2024.#Criminal proceedings against Unknown individuals.#Request for a preliminary ruling from the Giudice delle indagini preliminari presso il Tribunale di Bolzano.#Reference for a preliminary ruling – Processing of personal data in the electronic communications sector – Confidentiality of communications – Providers of electronic communications services – Directive 2002/58/EC – Article 15(1) – Articles 7, 8, 11 and Article 52(1) of the Charter of Fundamental Rights of the European Union – Access to those data requested by a national authority having competence to prosecute offences of aggravated theft – Definition of the concept of ‘serious offence’ the prosecution of which is capable of justifying serious interference with fundamental rights – Competence of the Member States – Principle of proportionality – Scope of prior review by a court of the requests to access the data retained by providers of electronic communications services.#Case C-178/22.