"Learn how to craft an effective character reference letter for court proceedings with our comprehensive 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? A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Use the judge's title properly, but only once in the salutation. A character reference letter for court child custody is a legal document serving as the recommendation for a parent who wishes to become a guardian.