Government/Courts/Politicians are the issue with crims getting off lightly, the police catch them, yet the laws aren't harsh enough, can hardly blame the police.
I personally would be reporting everything that happens so it is all on record, even if no action is taken at this stage. If your workplace is added to the patrol route, and he is a dealer, he will move on. Then again, if he is a dealer acting the way he is, it does not sound like he will last long anyway.