This article can help you craft a wellwritten expungement letter if you follow through with the samples given. Customize and Download this "Expungement Reference Letter".Character Reference Letters and Letters of Recommendation are useful in defending an Orange County DUI case, as prosecutors and judges use them in court. I am writing to request that I be allowed to file a petition for expungement of my criminal record before the required waiting period. First, introduce yourself and explain your relationship to your boyfriend and how long you've been together. Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. How do you greet a judge in a letter? I am writing this letter on behalf of a family member mine who is presently before you on criminal charges and is due to be sentenced shortly.