At the same time, general jurisprudence will be enriched with a few terms :D

According to paragraph 2 of Article 11 of the Universal Declaration of Human Rights, “no one shall be held guilty of any penal offence on account of any act or omission which did not constitute a penal offence, under national or international law, at the time when it was committed. Nor shall a heavier penalty be imposed than the one which was applicable at the time when the penal offence was committed”