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Ok so there is no record yet, just a charge.. this is very good.
He needs to get an attorney to go to the court with him. They attorney can do one of two things, either beat he charge out right, or enter into a agreement to resolve the case with out a conviction or record. A lot of times a minor charge like this can be beaten or dismissed, but usually not without good representation.
I have done this in many similar cases.
You can try the yellow pages or use www.legalmatch.com