If you've been ripped off by anyone, contact your local police dept. with all the details and documentation plus items recieved. Also, If you know that the person has defrauded others, mention that with as much detail as you can. Assuming you have the other party's address, try to contact their local law enforcement about the issue you have with them. If there was anything send through the U.S Postal Service, you can file a complain with them
here. If the transaction was across state lines, you may also wish to file a complaint with the Fedral Trade Commision. You can do that
here. Another thing is contacting the State Attorney General's Office of the person's state of residence. If you've used a payment service like Paypal, Western Union, a Credit Card, etc. try contacting them. YMMV.
Basically, explore all avenues of complaint. It will increase you chance of action on you complaint. You might not get any or all of you money back, but the other party will probably be penalized or at least stopped in further efforts to defraud.
Almost forgot... If you know of any other that have been defrauded by the same individual or company, contact them and encourage them to take action. More reported instances of fraud will also increase a chance of action on you complaint.
