If you have a genuine bad check for any real sum (written on a closed account, or something of that nature) you have a case of fraud, and it is not the citizen's duty to enforce the law. If either of you were hurt during the process, the injured party can sue the injuring party and the agency that has jurisdiction that failed to serve. In most cases, the lower limit is $250. Often, what you have is a legal system that doesn't want to be bothered with the problem, and just makes it difficult for the defrauded party in order to make it go away. I've been out of that sort of business for around 2 decades now, so what I know may be out dated, and it may not apply to every locale.
If you're bent on doing this, you need to make money on it. Then you need to shadow the clown for a few days to see his habits. Catch him in a public place, have a friend with a cell phone that can take a picture, and pop him out in the open.