By Authority of Parliament: the Constitutional Boundaries of Legislative Power in Canada

I was reading Ryan Alford's By Authority of Parliament and thinking about how our modern commercial markets and domestic institutions operate on a silent, unexamined assumption that constitutional stability is a permanent fixture. In the daily execution of corporate transactions we take for granted that our legal frameworks are insulated from arbitrary legislative or executive overreach. Alford’s exploration of Canada's constitutional inheritance reveals that this stability is not actually an organic baseline but instead a product of historical crises (p. 9, 158-9). Our entire legal order is built upon "unspoken parameters of constitutional innovation" designed to replace the "spurious loyalty" of arbitrary colonial-era rule (p. 129) with a durable, predictable system of governance.

The 1982 patriation of the Constitution was supposed to decisively resolve this by establishing constitutional supremacy. Under Section 52, the Constitution became the supreme law of Canada, serving as the "most important element of the transformation of the Constitution of Canada at patriation" (p. 14). As Justice Cory famously noted, "it is not the courts which limit the legislatures. Rather, it is the Constitution... that limits the legislatures" (p. 7). For the commercial bar, the boundaries restricting legislative volatility are the bedrock of commercial certainty. The judiciary's ongoing effort to articulate the unwritten, "load-bearing structural features" of our constitutional framework is the only structural safeguard that prevents a sudden legislative erosion of the rules governing capital and contract (p. 7).

When systemic economic or political shocks hit, this legal durability faces its ultimate test. History demonstrates that crises routinely tempt the state to assert absolute legislative supremacy, which has historically been "used to justify" the suspension of fundamental safeguards, leaving the system with "no safety valve" against arbitrary state action (p. 148-9). In the Canadian context, the invocation of extraordinary statutory powers or override mechanisms like Section 33 (the Notwithstanding Clause) highlights the constant tension between legislative power and constitutional restraint. For corporate Canada, robust rule-of-law protections like s. 52(1) that restrain legislative overreach are the direct underpinnings of long-term contracting predictability, property rights enforcement, and favorable sovereign risk assessments. These structural guardrails endure only through active preservation. As Alford reminds us, for the commercial bar and corporate leadership alike, defending constitutional boundaries is the ultimate prerequisite for protecting capital, contract, and market stability.

By Authority of Parliament: the Constitutional Boundaries of Legislative Power in Canada Alford, Ryan Patrick, 2026, Book , 261 pages; 0228027853, 9780228027850