Customary international law

Netherlands

Netherlands - International Crimes Act 2003 EN

ยง 2. Crimes

Section 7

1. Anyone who, in the case of an international or non-international armed conflict, commits a violation of the laws and customs of war other than as referred to in sections 5 or 6 shall be liable to a term of imprisonment not exceeding ten years or a fifth category fine.

Rome Statute

Article 10

Nothing in this Part shall be interpreted as limiting or prejudicing in any way existing or developing rules of international law for purposes other than this Statute.