TITLE II: OF THE FUNDAMENTAL FREEDOMS, DUTIES AND RIGHTS
Article 9
No one may be arrested, detained or condemned except by virtue of a law promulgated prior to the acts alleged against them, for the motives and in the forms specified by the law.
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.