"Canadian Aboriginal law is the body of Canadian law that explores issues related to Indigenous peoples in Canada. Indigenous law refers to the legal traditions, customs and practices of Indigenous peoples and groups."
The following texts may be a good starting off point for your research:
A reconciliation without recollection? : an investigation of the foundations of Aboriginal law in Canada
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Indigenous law: some issues, considerations and experiences
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Aboriginal Law Handbook
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Aboriginal peoples and the law : A Critical Introduction
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Indigenous methodologies build on the body of knowledge of indigenous peoples about themselves and for their own needs as peoples, and challenge Western research perspectives pertaining to Indigenous peoples as objects of investigation.