A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court.A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document.