Nulla poena sine lege

Finland

Finland - Criminal Code 1894 (2015) EN

Chapter 3 - The general prerequisite of criminal liability

Section 1 - The principle of legality

(2) The punishment and other sanction under criminal law shall be based on law.

Rome Statute

Article 23 Nulla poena sine lege

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