evidence: Powers [edit]Following the Westminster model, all legislation in Sri Lanka must be passed by the Parliament to become law and it controls taxation and the supply of money to the government. Parliament's ability to make laws, includes those that have retrospective effect and repealing or amending any provision of the Constitution, or adding any provision to the Constitution. Government ministers must regularly answer questions in Parliament and there are a number of select committees which scrutinize particular issues and the workings of the government.[5]