Do you need a law degree to represent another person besides yourself in criminal court?

Generally, no, you do not need a law degree to represent another person in criminal court. However, there are significant limitations. You can typically only represent yourself (pro se) or a close relative in limited circumstances, often in very minor cases. In most jurisdictions, representing someone else in criminal court requires being a licensed attorney. Attempting to represent someone else without the proper credentials is illegal and can result in penalties.