Law is a broad field that encompasses the system of rules set by a society to regulate behavior along with the enforcement of those rules. Law students study all of a society’s rules, but usually specialize their law practice upon graduation into a particular area like civil or criminal law.

Should an individual decide to gain additional certification that they are qualified in a field of study, they may decide to gain a postgraduate diploma. This type of diploma is attained after one has first completed a master's degree.