Relationship between Rome Statute and existing or developing rules of international law

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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.

States with implementing provisions

StateProvisions
Australia [1]
Canada [1] [2] [3] [4]
Kenya [1]
New Zealand [1]
South Africa [1]
United Kingdom of Great Britain and Northern Ireland [1] [2] [3]