Manner and form — the Jackson controversy

Parliamentary sovereignty may be subject to manner and form requirements — Parliament can bind its successors not as to substance but as to procedure. In R (Jackson) v Attorney General [2005] UKHL 56, the House of Lords upheld the validity of the Parliament Acts, holding that the 1911 Act had redefined Parliament for certain purposes rather than delegating power. While the ratio was narrow (the 1949 Act validly amended the 1911 Act), explosive obiter dicta suggested sovereignty is no longer absolute and courts might refuse to apply extreme legislation abolishing judicial review or fundamental rights. The central doctrinal tension is between Dicey's continuing sovereignty (no Parliament can bind successors) and Jennings's self-embracing sovereignty (Parliament can alter the manner and form of future legislation). Jackson did not resolve this debate but revealed judicial willingness to contemplate constitutional limits on legislative power.

R (Jackson) v Attorney General [2005] UKHL 56: Parliament Acts validly redefined Parliament for certain purposes; 1949 Act lawfully enacted. Obiter dicta from Lords Steyn, Hope, and Lady Hale suggested courts might resist extreme abuses of legislative power.

Attorney General for New South Wales v Trethowan [1932] AC 526 (PC): Colonial legislature bound by statutory requirement for referendum before abolishing upper house. Established that legislatures created by statute can be subject to manner and form requirements.

Harris v Minister of the Interior [1952] 2 SA 428 (AD): South African Parliament could not override entrenched voting rights without prescribed two-thirds majority. Confirmed effectiveness of procedural requirements in written constitutional systems.

Pickin v British Railways Board [1974] AC 765: Courts cannot examine internal parliamentary procedures once Act enrolled. Distinguished in Jackson as concerning legal competence, not internal procedure.

Thoburn v Sunderland City Council [2002] EWHC 195 (Admin): Constitutional statutes cannot be impliedly repealed. Represents judicial recognition of hierarchy within statute law, cognate to manner and form theory.

Courts approach manner and form claims through several analytical steps. First, distinguish whether the requirement is procedural (special majorities, referendums) or substantive (prohibiting certain content). Only procedural requirements may be valid under self-embracing sovereignty theory. Second, determine if the earlier Parliament had authority to impose the requirement — the 1911 Act succeeded because passed with full tripartite consent. Third, assess whether the later enactment complied with prescribed procedures — if not, it may be invalid as not being a true 'Act of Parliament' under the rule of recognition. Fourth, consider the enrolled Bill rule (Pickin) — courts will not examine internal procedures but may review questions of legislative competence. Common triggers include: devolution statutes prescribing procedures; 'constitutional statutes' requiring express repeal; extreme hypotheticals about abolishing judicial review.

Conflating ratio and obiter in Jackson: The ratio merely upheld the Parliament Acts; all remarks about sovereignty limits are obiter. State explicitly which is which. Overgeneralising Jackson: The case approved a unique historical arrangement, not general manner and form theory. Misapplying Trethowan: Commonwealth cases concern derivative legislatures created by statute; Westminster's authority derives from common law. Ignoring Pickin: Must explain why Jackson (legislative competence) differs from Pickin (internal procedures). Assuming the delegated legislation theory survives: Unanimously rejected in Jackson — Parliament Acts create primary legislation.