Dear judge (name), I am writing to ask for leniency in the sentencing of my husband, because (then give all your reasons and speak only from your heart). A character letter plays a dual role.Explain why you feel you deserve leniency. 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. How should you start a leniency letter? The core of your letter should explain why you believe the judge should show leniency towards the defendant. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. The 5 most common tips in writing an effective leniency letter to a judge include: write a clear introduction, introduce yourself and establish credibility. A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court.