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. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things.Introduce yourself in the opening paragraph. I am writing this letter on behalf of a former student of mine who is presently before you on criminal charges and is due to be sentenced shortly. Write the date and the judge's address in the top left.