A good character witness letter should be written in a professional tone, as it is usually addressed to a judge. The letter should include an introduction, an explanation as to why the writer is writing the letter and an outline of the good deeds and character of the defendant.
When writing a character witness letter, the purpose of the letter to is address the court as to why incarceration will be detrimental to the defendant and his family. The writer of the letter should first state who he is and how he is acquainted with the defendant. The letter should contain a statement that the writer acknowledges and understands the crime the defendant is being sentenced for. The letter should be properly formatted and addressed to the judge in charge of the sentencing.
A good character witness letter should address some of the good qualities of the defendant, along with any good deeds and contributions the defendant has made throughout his life. The letter should conclude by stating how the defendant's incarceration may have a negative effect on his future and life, be it his family life or his career. The writer should explain why he feels the defendant has taken steps to improve his life and has learned from his mistakes.