In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. Then, explain how you know the defendant you're writing about.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. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court. The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. First, always be respectful in your tone and requests. The letter should include the name of the court your case was filed in and the case number at the top right. Put the caption (St. v.