PART III. – BASIC PRINCIPLES OF GOVERNMENT.

Division 3. – Basic Rights.

Subdivision B. – Fundamental Rights.

37. PROTECTION OF THE LAW.

(2) Except, subject to any Act of the Parliament to the contrary, in the case of the offence commonly known as contempt of court, nobody may be convicted of an offence that is not defined by, and the penalty for which is not prescribed by, a written law.

PART III. – BASIC PRINCIPLES OF GOVERNMENT.

Division 3. – Basic Rights.

Subdivision B. – Fundamental Rights.

37. PROTECTION OF THE LAW.

(7) No person shall be convicted of an offence on account of any act that did not, at the time when it took place, constitute an offence, and no penalty shall be imposed for an offence that is more severe in degree or description than the maximum penalty that might have been imposed for the offence at the time when it was committed.

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.