Liberalism refers to the political school of thought which revolves around enabling individuals whilst also protecting them in order to preserve their freedom and liberty. A positive view of human nature underpins the liberal belief that all people are rational and considerate and are able to decide which types of political organisations etc. can best protect individual needs and promote individualism. Liberalism aims to facilitate a political culture which is both tolerant and pluralistic. The pillars on which liberalism was built on suggest that the protection of human rights as well as the promotion of constitutional reform is both intrinsic in liberal aims and ideology.

Liberals championed the idea of constitutional reform links to Constitutionalism which refers to the practice of limited government brought about by the existence of a constitution that aims to protect individuals from the threat of tyrannical government. It aims to protect liberty through the establishment of internal and external checks on government power. Liberals place great weight on constitutionalism and it could be argued to be one of the pillars of the whole political ideology, upon which all other fundamental tenets such as toleration, pluralism and justice, lie. Without constitutionalism, it would be difficult to guarantee these other doctrines. The Government within the UK exercises great power which results in the constant threat of tyranny, which liberalism as a political concept is aware of. Liberals believe that any entity is likely to be self-regarding/serving if they are left to their own devices and not regulated in any way. Liberals fear arbitrary government and governments in possession of power are likely to pander to Lord Acton’s maxim that "Power tends to corrupt, and absolute power corrupts absolutely." Thus the concept of limited government is both necessary to ensure