This is the process by which rights and duties are determined in the legal order. There is a clear separation between the Legislature, Executive and Judiciary. The central idea in this doctrine is to make sure power is not concentrated in the hands of one arm of government and to ensure checks and balances among the three arms of government. But it has also been noted that the doctrine does not mean strict compartmentalized separation as their functions may overlap. For example, though it’s the main duty of the Legislature to make laws, the executive and judiciary may also make laws in certain instances.