Nullum crimen sine lege

Luxembourg

Luxembourg - Constitution 1868 (2009) EN

''Chapter II: Public Freedoms and Fundamental Rights , Article 12''

No one may be arrested or detained except in the cases specified by the law and in the form which it prescribes.

Rome Statute

Article 22 Nullum crimen sine lege

1. A person shall not be criminally responsible under this Statute unless the conduct in question constitutes, at the time it takes place, a crime within the jurisdiction of the Court.

2. The definition of a crime shall be strictly construed and shall not be extended by analogy. In case of ambiguity, the definition shall be interpreted in favour of the person being investigated, prosecuted or convicted.

3. This article shall not affect the characterization of any conduct as criminal under international law independently of this Statute.