Detre v. Canada (Attorney General)

Decided: 2026-10-05. Docket: A-105-25. Citation: 2026 FCA 167 (CanLII). Procedure — Judicial review — Mootness — Discretion to hear moot matter — Whether application properly dismissed as moot after reconsideration decisions — Borowski criteria and discretion reviewed on palpable and overriding error, absent extricable error of law — Request for declaratory relief cannot by itself avoid mootness — Appeal dismissed | Pensions and social benefits — Employment Insurance — Benefits calculation and redetermination — Whether alleged calculation error can be addressed within existing judicial review — Reconsideration decisions considered separate decisions not in present proceedings — Appellant must seek redetermination of calculation through administrative process, with discretion to extend the