Where is the UK constitution primarily documented?

The UK constitution is primarily documented in statutes, which means it is composed of laws that have been formally enacted by Parliament. This written legal framework includes key pieces of legislation that shape the functioning of the government and the rights of the citizens. Statutes provide clarity and structure to the constitution, and they are enforceable in courts, making them a fundamental source of constitutional law.

While conventions, treaties, and treatises also play significant roles in the UK's constitutional framework, they do not have the same authoritative status as statutes. Conventions refer to unwritten practices and customs that have developed over time and guide the behavior of government institutions, but they lack legal enforceability. Treaties are formal agreements between countries that can influence domestic law but do not make up the core framework of the constitution. Treatises, which are written works discussing legal or philosophical concepts, serve an analytical or interpretative role rather than constituting the legal foundation. Thus, statutes are the primary documentations that define and outline the UK constitution in a legally binding manner.