Doctrine of Precedent: The Parliament of UK is one of the most peculiar institutions in the UK. It can simply change anything by a simple majority. One of its main functions is to create and amend laws. This role of Parliament has mainly developed in the past two-three decades. However, despite the growing implementation of statutes created by Parliament, I personally think case law (aka. precedent) has retained its importance in the English Legal System. The doctrine of precedent is based on the principle of stare decisis, which means to stand by things decided