I think you are being scammed. Find a lawyer who has experience in the Fair Debt Collection Practices Act.
Since you know you never wrote a bad check, it is clear you are being scammed. Many states regulate collection agencies, and I would be filing a complaint with them about this debt collector. Oh, BTW, in most states, it is also a crime to threaten someone with criminal prosecution to collect a civil debt. You may also want to seek representation from a consumer attorney handling federal Fair Debt Collection Practices Act cases. Hope this perspective helps!
Almost guaranteed to be a scam.
Here is a blog entry I did about this issue. http://ow.ly/qB4JB
This also applies to most everything else check related.
The hard part is tracking down these scammers.They will not give you an address or valid information on who they really are.
If you are able to get information, and you google them and there is someone at the other end, please feel free to contact me or some other consumer protection lawyer.
Mr. Krumbein is admitted to the courts of Virginia. His advice is often based on Virginia and Federal law, however, you should consult a lawyer in your geographic area for more detailed advice.
I feel comfortable saying this is almost certainly a scam. Even if this is not a scam, the failure to follow up with you for more than five years has destroyed any potential claim, even a criminal one. The statute of limitations for writing a bad check less than $200.00 is five years after writing the check, which means any claim against you would have become stale in August 2013. The statute of limitations on a contract action is also five years, which means there should not be civil liability either. In short, even if they are telling the truth, they are trying to collect a debt that they have no right to collect, and are threatening criminal prosecution where no right arises. Not only does this mean their threats are empty, but a court may find them in violation of the Fair Debt Collection Practices Act.
Of course, in all likelihood, you will not be able to bring a FDCPA claim against them. Scam artists ordinarily do not give out contact information, use pre-paid cell phones, and take every action they can to avoid letting you track them down. It may be better to simply call their bluff and inform them that you will not pay, and their only option is to seek legal action.
This response is not offered as legal advice, but is only a general informational response for public interest. No one reading this is authorized to claim that an attorney client relationship exists with this writer or the writer's law firm. If you have found my advice helpful, please mark it as such; if you believe my response is the best that you have received to this question, please mark it best in thread.