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. Craft a compelling expungement letter to a judge with our free template and expert tips to clear your record today! Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. How to fill out the Sample Declaration and Support Letters for Expungement? Based on my knowledge of ______, I firmly believe that the actions alleged in the charges against are uncharacteristic of true nature. A letter will stand out if the author knows the defendant and the letter is credible and personal. What is a Character Letter?