By: Jennifer Koshan
PDF Version: Reconciling the Application of the Interjurisdictional Immunity Doctrine to Aboriginal Title and Lands Reserved
Case Commented On: McCaleb v Rose, 2017 BCCA 318 (CanLII)
It is a challenge to teach the interjurisdictional immunity (IJI) doctrine these days, in part because the Supreme Court of Canada has been sending mixed, incomplete, and frankly off the cuff messages about the use of this doctrine. IJI has predominantly been applied so as to render provincial laws inapplicable to federal works, undertakings and other federally regulated persons and entities when they impair the core of the federal power over those entities (although the Supreme Court of Canada left the door open for IJI to apply to federal laws that impair provincial entities in Canada (Attorney General) v PHS Community Services Society, 2011 SCC 44 (CanLII)). The Court signalled in Canadian Western Bank v Alberta, 2007 SCC 22 (CanLII), that generally the use of the doctrine should be minimized since it is redolent of more rigid approaches to constitutional law that favour “watertight compartments” rather than the more modern cooperative federalism approach. Canadian Western Bank tells us that IJI issues are to be analysed only if the case can’t be resolved on the basis of validity or paramountcy, although the Court has often neglected that progression in cases subsequent to Canadian Western Bank (see e.g. Quebec (Attorney General) v Canadian Owners and Pilots Association, 2010 SCC 39 (CanLII)).