Nulla poena sine lege

Switzerland

Swiss Criminal Code 1937 (2017)

Book One: 4 General Provisions

Part One: Felonies and Misdemeanours Title One: Scope of Application

Title One: Scope of Application

Article 1. No penalty without a law
No one may be punished for an act unless it has been expressly de¬clared to be an offence by the law.

Rome Statute

Article 23 Nulla poena sine lege

A person convicted by the Court may be punished only in accordance with this Statute.