Law has become a significant medium for every civilized nation. Theory and philosophy of law is called jurisprudence. Jurisprudence should always be the foundation for framing rules and laws of a nation. Law is a dynamic subject which changes with the changing needs of the society. Philosophers and Jurists have come up with different definitions of law in different eras. Nature of law has also been propounded differently by different jurists. John Locke's theory on Constitutionalism is worth mentioning in present day context because the theory of Constitutionalism is associated with the noble idea which means freedom from arbitrary government . This concept encourages protection/promotions of rights of people, rule of law and accountable governmental procedures. A country which lacks constitutionalism is a dangerous sign which should always be discouraged.

Reformative theory of punishment is widely being accepted and implemented theories of punishment around the world. It is backed by the ideology that prisons should be converted into reformed homes. The motives behind the offences must be examined; there should be made a way so that the offender could go back to mainstream society.