A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. A character letter plays a dual role.Include specific examples of how the person has helped you or someone else, or how he or she has been a leader or an inspiration. How To Start Your Letter. On this page below is a list of LOCAL forms that can be completed online and then printed. The form you need may be in this list. The first paragraph should tell the judge who you are writing to him about and how you know the defendant. You'd also want to say how long you have known her. Find Your Court Forms. Defend a friend or family member's moral character in court.