Well then your lawyer is obviously asking for some material to back up your character. A letter from your employer saying you're a stand up guy goes to show you werent some reckless drunk the other night who does this all the time.
If thats the case, then build a character with the letter that is the OPPOSITE of what you would expect of a drunk, like you're punctual, reliable, competent, hard working, etc.
Those kinds of things help to show that this was an isolated incident and the court shouldnt characterize you as an alcoholic.
