"Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. Free template for a character reference letter for a DUI charge!I am writing this character letter on behalf of Sean McDevitt who has been charged with a DUI and injury to another person. Character Reference Letters and Letters of Recommendation are useful in defending an Orange County DUI case, as prosecutors and judges use them in court. This article can help you craft a wellwritten expungement letter if you follow through with the samples given. 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 reference letter for court is a written statement advocating for an individual's moral standing, which can influence the judge's decision.