Free template for a character reference letter for a DUI charge! Tips: Keep the letter honest but positive.Avoid downplaying the seriousness of the DUI. Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide. I respect a jury has found _____ guilty of ______. I am writing to offer a more complete picture of who ______ is. Character Reference Letters and Letters of Recommendation can help you in most cases if you have a DUI or other court case pending. Reference Letter Sample. Ask at least 3 persons to write you a reference letter for expungement or character letter for expungement.