Black River First Nation v. Canada (Attorney General)

Decided: 2026-10-26. Docket: T-1242-07. Citation: 2026 FC 1309 (CanLII). Indigenous peoples — Treaties — Treaty 5 disparity claim — Adhesion — Unilateral imposition of inferior reserve land and gratuity terms alleged — Declarations sought for breach of honour of the Crown and fiduciary duties — Damages and restitution for treaty land shortfall claimed — Action dismissed | Evidence — Expert evidence — Historical experts — Weight — White Burgess Langille Inman v Abbott and Haliburton Co, 2015 SCC 23 — Whether expert was biased or methodology seriously flawed — Both experts found credible and reliable — No basis to exclude expert evidence — Evidence accepted | Indigenous peoples — Honour of the Crown — Treaty-making and adhesions — Haida Nation v British Columbia (Minister of Forests), 2004 S