46As recalled in paragraphs 31 and 32 of the present judgment, Article 54 of the CISA, which was incorporated into EU law by the Protocol integrating the Schengen acquis into the framework of the European Union, annexed to the Treaty on European Union and to the Treaty establishing the European Community by the Treaty of Amsterdam (OJ 1997 C 340, p. 93), like Article 50 of the Charter, lays down the principle ne bis in idem.
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