27Article 50 of the Charter provides that ‘no one shall be liable to be tried or punished again in criminal proceedings for an offence for which he or she has already been finally acquitted or convicted within the Union in accordance with the law’. Therefore, the ne bis in idem principle prohibits a duplication both of proceedings and of penalties which are criminal in nature for the purposes of that article in respect of the same acts and against the same person (see, to that effect, judgment of 26 February 2013, Åkerberg Fransson, C‑617/10, EU:C:2013:105, paragraph 34).
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