A master’s degree in law enforcement focuses on specialized areas of law enforcement and the criminal justice system. Such areas might include forensic psychology, leadership, teaching, and consulting. A master’s degree in law enforcement can quickly open the door to work at the state and federal levels.n simpler times, entry into law enforcement did not require much education beyond high school. However with increases in the crime rate and fear of terrorist attacks on the rise, it is now more important for law enforcement workers to be highly educated and technically savvy.