There has been added the rule of the retroactivity of a more lenient penal law, which exists in a number of Member States and which features in Article 15 of the Covenant on Civil and Political Rights.
Cuireadh leis seo an riail maidir le haisghníomhaíocht dlí choiriúil níba thrócairí, atá ann i roinnt Ballstát agus atá le fáil in Airteagal 15 den Chúnant maidir le Cearta Sibhialta agus Polaitiúla.