British Constitutional Law refers to the set of rules and principles that govern the United Kingdom. Unlike many countries, the UK does not have a single written constitution; instead, its constitution is made up of statutes, common law, and conventions. Key documents include the Magna Carta, the Bill of Rights 1689, and various acts of Parliament. This legal framework outlines the powers of government institutions, the rights of citizens, and the relationship between different branches of government. It ensures that laws are made and enforced fairly, maintaining the rule of law and protecting individual freedoms within the British legal system.