Where is the aboriginal law in Canadian legal System?

From the theoretical and philosophical perspectives,
-Where is the aboriginal law in Canadian legal System?
how can we make the aboriginal law as part of the Canadian Legal
System? (The main question)
Should Canadian Legal system adopt itself to aboriginal law
practices or aboriginal law practices can be included in the Canadian Legal System?
How can we compare the situation of Aboriginal Law in the
legal system in Canada and other countries including but not limited to
Australia, New Zealand etc?