Along with Parliamentary Sovereignty, the Victorian constitutional scholar A.V Dicey called the Rule of Law one of the ‘twin pillars of the UK constitution’. By this, he meant it was one of the things that was fundamental in making the UK constitution what it is.
The concept of the rule of law is an ancient one. It refers to a society in which bodies of law govern how society is run. It has since been fundamental to any functioning state, all of which are governed by the rule of law. However, in modern liberal democracies, like that in Britain, it has taken a more defined meaning.