An important part of governing is the ability to enact laws that respond to the evolving needs of the people being governed. Law-making powers vary between agreements, and according to whether self-government provisions are in place.
Modern treaties are carefully designed to ensure that the law-making powers of the treaty government interact effectively with the law-making powers of provincial, territorial and federal governments. In some cases, modern treaties recognize “concurrent” law-making powers, which means that laws enacted under the modern treaty government might have overlapping jurisdiction with provincial and federal governments. In other cases, a “displacement” model applies. This means that federal and provincial laws apply until laws passed by modern treaty governments displace them.
Here are a couple of examples:
On the other hand, in the event of inconsistency between a law passed by a modern treaty government and federal law, there is provision for a future agreement between the Indigenous treaty holder and Canada which will identify the areas in which laws passed by modern treaty governments prevail over federal laws.