The process to restrict your records depends on the date of your arrest and which agency or prosecuting attorney processed your case. The letter should be polite, concise, and professional, emphasizing personal growth and the benefits of expungement.When preparing for an expungement hearing, being well-prepared and organized can significantly influence the outcome. There is a filing fee for an expungement motion. If you have a low income, you can fill out a court fee waiver form (IFP). Customer: I need a sample letter to a judge regarding my withheld judgment for a DUI.