Introduction: The UK constitution is a unique blend of legal rules and non-legal rules, with
constitutional conventions playing a vital role in its functioning. Constitutional conventions are
non-legal rules that govern the conduct and behavior of constitutional actors. This essay aims to
explore the nature, sources, enforcement, and evolution of constitutional conventions within the
UK constitutional framework. It will critically analyze the impact of conventions on decision-
making, government structure, and the potential implications of codifying these conventions.
I. Sources of the UK Constitution: The UK constitution draws its authority from various
sources, including legal rules and non-legal rules. Legal rules comprise primary and secondary
legislation, along with case law, while non-legal rules encompass constitutional conventions and
prerogative powers. Conventions are distinct from mere practices, traditions, and customs, as
they possess a higher level of normative force and are binding on constitutional actors.
Renowned scholars like Dicey and Jennings have provided definitions and explanations of
conventions, which will be utilized throughout this essay.
II. The Nature and Examples of Constitutional Conventions: Constitutional conventions
regulate numerous aspects of the UK's constitutional practice. One prominent example is
ministerial accountability, which is primarily governed by conventions rather than legal rules.
Conventions dictate that ministers must be accountable to Parliament, resign in cases of serious
misconduct, and uphold collective responsibility. The empirical evidence from cases such as AG
v Jonathan Cape Ltd and Madzimbamuto v Lardner-Burke will be examined to illustrate the
significance of conventions in shaping constitutional behavior.
III. Creation, Enforcement, and Evolution of Conventions: Conventions come into existence
through long-standing practices, precedents, and consensus among constitutional actors. They
are enforced through political and moral sanctions rather than legal mechanisms. Over time,
conventions can evolve in response to societal and political changes. However, their evolution is
often slow and incremental, driven by political necessity rather than deliberate design. The lack
of formal enforcement mechanisms raises questions about the efficacy and enforceability of
conventions, which will be critically analyzed.
IV. Codification of Conventions: The issue of codifying conventions, transforming them into
legally binding rules, has been a subject of debate. The legal effect of codifying conventions
must be carefully considered, as it could potentially undermine the flexibility and adaptability of
conventions. Codification may provide clarity and certainty, but it could also restrict the
evolution of conventions in response to changing circumstances. The implications of codification
on the role of courts in enforcing conventions will be examined, considering both advantages and
drawbacks.