Written law comprises The Federal Constitution which is the supreme law of the land and State Constitution, a range of constitutions regulating the governments of thirteen states in Malaysia. Second written law is the Legislation law which is endorsed by Parliament and Legislative Assemblies at the federal and state level respectively. Final source of written law is the Subsidiary legislation as states in the Interpretation Act ‘any proclamation, rule, regulation, order, notification, by-law or other instrument made under any Ordinance, Enactment or other lawful authority and having legislative effect’. Malaysia has huge amount of subsidiary legislation. Subsidiary legislation is referred to law made through powers delegated by the legislature mainly Ministers and local authorities. Only Subsidiary legislation made in a proclamation of emergency under Article 150 of the Federal Constitution is accepted , other breaching of either a parent Act or the Constitution is voided.
Unwritten law under the Malaysian law is the law which is not written or found in Federal and State Constitutions. It is also not endorsed by the Parliament or the State Assemblies. Unwritten law comprises of Judicial decisions of the superior courts Principles of English Law and Customs law. Judicial decisions using the systematical method called `doctrine of binding judicial precedent` at the High Court, Court of Appeal and the Federal Court followed by Supreme Court can still be found in Malaysian law.
Nevertheless the decisions made by Federal Court and Judicial Committee of the Privy Council are still binding on the present court. Binding or