A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. Sample Format for a Character Letter.If you have been asked to write a character letter, this simple template may be a useful guide. 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? Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. I am writing this letter on behalf of a former student of mine who is presently before you on criminal charges and is due to be sentenced shortly. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. A character letter is a letter of support from people who know you to help show judges and DAs the positive sides of you.