Judgment of the Court (Grand Chamber) of 5 April 2022.#G.D. v The Commissioner of the Garda Síochána and Others.#Reference for a preliminary ruling – Processing of personal data in the electronic communications sector – Confidentiality of the communications – Providers of electronic communications services – General and indiscriminate retention of traffic and location data – Access to data – Subsequent court supervision – Directive 2002/58/EC – Article 15(1) – Charter of Fundamental Rights of the European Union – Articles 7, 8 and 11 and Article 52(1) – Possibility for a national court to restrict the temporal effect of a declaration of the invalidity of national legislation that is incompatible with EU law