The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. What parents and witnesses need to know about character reference letters to the court for child custody.Includes a downloadable sample and template. 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. If you write a character or sentencing letter to a Court, address the letter to "The Honorable John Smith" or "Judge Smith. Below is reference of what a letter should contain and a sample of a written letter for your use as a guide.