Delgamuukw v British Columbia, , also known as Delgamuukw v The Queen, Delgamuukw-Gisday’wa, or simply Delgamuukw, is a ruling by the Supreme Court of Canada that contains its first comprehensive account of Aboriginal title (a distinct kind of Aboriginal right) in Canada. The Gitxsan and Wet’suwet’en peoples claimed Aboriginal title and jurisdiction over 58,000 square kilometers in northwest British Columbia. The plaintiffs lost the case at trial, but the Supreme Court of Canada allowed the appeal in part and ordered a new trial because of deficiencies relating to the pleadings and treatment of evidence. In this decision, the Court went on to describe the "nature and scope" of the protection given to Aboriginal title under section 35 of the "Constitution Act, 1982", defined how a claimant can prove Aboriginal title, and clarified how the justification test from "R v Sparrow" applies when Aboriginal title is infringed. The decision is also important for its treatment of oral testimony as evidence of historic occupation.