LuxembourgDroits fondamentaux 12 · Fundamental rights

No one can be convicted for an act that was not an offence when it was committed. What is this principle called?

In the exam (French)

Nul ne peut être condamné pour un acte qui n'était pas une infraction au moment où il a été commis. Comment appelle-t-on ce principe ?

  1. aCriminal law does not apply to foreignersLa loi pénale ne s'applique pas aux étrangers
  2. bCriminal law is not retroactiveLa loi pénale n'est pas rétroactiveCorrect answer
  3. cCriminal law applies to all past actsLa loi pénale s'applique à tous les faits passés

Why?

Article 19 forbids convicting someone for an act that was not an offence under the law at the time it was committed: criminal law is not retroactive.

Translated with AI. In the exam the question is in French, as shown above.

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Source

Our own practice questions, written on the Constitution in force since 1 July 2023 and official information on Luxembourg’s institutions and history. There is no official list of questions: these are not the real exam questions. Every question was written, answered blind and fact-checked in separate rounds. The English translation and the explanations were made with AI; each question is shown beside its French original. Not affiliated with the Service de la formation des adultes (SFA) or Luxembourg’s Ministry of National Education.

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