Compagnie de chemin de fer Canadien Pacifique c. Sauvé — 2024 CAF 171

The Federal Court of Appeal set aside the Federal Court's dismissal of Canadian Pacific's judicial review application, holding that the arbitrator's decision on sexual harassment lacked the justification, transparency and intelligibility required by Vavilov. The case clarifies when a reviewing court impermissibly supplements an arbitrator's deficient reasons.