From our friends at FraudAid.com
Please understand that banks, credit unions, and stores frequently use the threat of arrest as a means of forcing you to pay what you owe. It is not coercion or illegal. Because you presented counterfeit/stolen/forged checks or money orders, you broke the law which gives them the right to threaten you in this manner. It does not mean they will carry through with the threat, they only want their money.
Please choose one of the following for further instructions:
You cashed the checks or money orders at a bank or store and you still have the cash
http://fraudaid.com/processing.htm#cashedYou cashed or deposited checks or money orders, or have had funds wired into your bank account or credit card account, and you have sent and/or spent the money: dealing with the bank - dealing with the check cashing store
http://fraudaid.com/processing.htm#sentmoney