The goal of character reference letters is to tell the judge a story. To give the judge insight into a defendant as a person.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. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. Use a formal email address, preferably one that includes your full name. How To Start Your Letter. A character letter is a letter of support from people who know you to help show judges and DAs the positive sides of you. If you've been asked to write to the judge, use our sample character reference letter and fill-in-the-blank template. What's a character reference letter? A character letter should be written in a formal and respectful tone.