 Offered within United States law schools, students of an M.J. curriculum are often business professionals and/or Juris Doctor degree holders; who wish to enhance their knowledge in a specialized field of law.A Master of Jurisprudence is highly beneficial for those that need an in-depth understanding of the law within current executive level positions.M.J.students are required to develop a comprehensive understanding of the operation of law as it applies to a specified area of law.