What's wrong with the British constitution?

In this provocative new study, Iain McLean argues that the traditional story of the British constitution does not make sense. It purports to be both positive and normative: that is, to describe both how people actually behave and how they ought to behave. In fact, it fails to do either; it is not a correct description and it has no persuasive force. The book goes on to offer a reasoned alternative.The position that still dominates the field of constitutional law is that of parliamentary sovereignty (or supremacy). According to this view, the supreme lawgiver in the United Kingdom is Parliament