The qualifications that you need to work in a courthouse depend on the type of job that you have. Defense attorneys and prosecutors both need law degrees and a license to practice law, which you can earn by passing the state bar exam. Judges also need a law degree, but they are elected or appointed to their position. To become a paralegal or legal aid, you must have associate degrees or professional certificates in paralegal studies. For a bailiff, interpreter, court reporter, clerk, or corrections officer career, you typically need industry-specific skills and an associate degree in a relevant field.