It's important to determine an area of sub-specialty within the field of criminal justice. This important step in the degree decision-making process is particularly relevant when you consider a master degree. More than any other degree level, a master degree is intended to provide specialty training in a certain focus area so that you can enhance your career opportunities after graduation. And, relevant to the field of criminal justice, is that while some sub-specialties require a master degree, others do not. Paralegals, for example, generally will be spending valuable work time obtaining a master in the field (employment obtainable with a certification and/or bachelor degree). Criminologists, on the other hand, most often need a PhD to practice successfully (which means a master will be essential on your educational road). Interview professionals, research online and on land programs, look for job/career descriptions that interest you. And, of course, find out if your area of interest either requires a master degree in criminal justice, or would prove more lucrative if you did obtain the master degree.