Question: where can the legal scope of practice be found

title: Law
text: The philosophy of law is commonly known as jurisprudence . Normative jurisprudence asks `` what should law be ? '' , while analytic jurisprudence asks `` what is law ? '' John Austin 's utilitarian answer was that law is `` commands , backed by threat of sanctions , from a sovereign , to whom people have a habit of obedience '' . Natural lawyers on the other side , such as Jean - Jacques Rousseau , argue that law reflects essentially moral and unchangeable laws of nature . The concept of `` natural law '' emerged in ancient Greek philosophy concurrently and in connection with the notion of justice , and re-entered the mainstream of Western culture through the writings of Thomas Aquinas , notably his Treatise on Law .