A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court.How to Write a Recommendation Letter for PreTrial Diversion (PTD) in Collin County. Call us for a free consultation. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. Dear Judge Broderick: I am writing this letter on behalf of my father, Chris Collins. If someone is a bad judge of something, they cannot do this. I'm a pretty good judge of character. I said that was fine and would he please draw up the necessary documents in writing.