British Constitutional Government under the Tradition of Ruling by Law

Generally,in the practice of the constitutional government,it's regarded that the main safeguard of British constitutional government comes from some accepted principles such as separation of powers,ruling by law,limiting powers by rights,etc. But the article confirms that democracy still play a key role in protecting British constitutional government,even more,both democracy and freedom are the foundation of the constitutional government through discussing the theories of W.Ivor Jennings and others.