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. During this time he has proven to be of fine and responsible character.The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. A character letter is a letter of support from people who know you to help show judges and DAs the positive sides of you. In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. How do you write a letter to a judge asking for leniency? Explain why you feel you deserve leniency.