Nulla poena sine lege

Netherlands

The Constitution of the Kingdom of the Netherlands 1815 (2008)

CHAPTER 1
Fundamental rights

Article 16

No offence shall be punishable unless it was an offence under the law at the time it was committed.

Rome Statute

Article 23 Nulla poena sine lege

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