What are the sources of the UK constitution?

A constitution is a set of rules and laws that regulate power within a country and is often described as the fabric of the workings of a state. The UK constitution is uncodified and unentrenched meaning that the Constitution is spread across a number of different documents and can also be amended easily, unlike the US constitution which is codified and entrenched meaning that any change to it is difficult to achieve. 

Because of the flexibile and amendable nature of the constitution, it has a number of sources. Firstly, statute laws are laws that are passed by Parliament. Because Parliament is sovereign, statutes are regarded as the highest law of the land. An example includes the Fixed Term Parliaments Act 2011, which states that general elections must be held every 5 years, no longer allowing the prime minister to set the date of the election. Secondly, conventions are the unwritten rules that have become commonplace in Parliament over time and may not often be written down. This is said to be the case with the Salisbury Convention which dictates that the House of Lords should not vote against government bills taken from an election manifesto and should therefore allow the government to make the bills law. Thirdly, EU laws are laws that we ought to follow as members of the European community. For example, the Maastricht Treaty 1992 established the European Union and a closer tie between member states.