Politics of the United Kingdom
The UK Parliament is the supreme legislative body in the United Kingdom (i.e., there is parliamentary sovereignty), and Government is drawn from and answerable to it. Parliament is bicameral, consisting of the House of Commons and the House of Lords. There is also a devolved Scottish Parliament and devolved Assemblies in Wales and Northern Ireland, with varying degrees of legislative authority.
Sovereignty
Within the modern governmental system, internal sovereignty is usually found in states that have public sovereignty and rarely found within a state controlled by an internal sovereign. A form of government that is a little different from both is the UK parliament system. From 1790 to 1859 it was argued that sovereignty in the UK was vested neither in the Crown nor in the people but in the "Monarch in Parliament". This is the origin of the doctrine of parliamentary sovereignty and is usually seen as the fundamental principle of the British constitution. With these principles of parliamentary sovereignty majority control can gain access to unlimited constitutional authority, creating what has been called "elective dictatorship" or "modern autocracy". Public sovereignty in modern governments is a lot more common with examples like the USA, Canada, Australia and India where government is divided into different levels.