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Consider the following scenario:
An individual, the "buyer" buys something online from someone else, the "seller". The buyer cannot verify the identity of the seller.
The seller wants money upfront before shipping and communicates bank account details to the buyer. The buyer trusts the seller because he assumes the seller can be identified using via the banking details if the seller should attempt to defraud the buyer.
However, the bank account is not a personal account in the seller's names. It's a service that will convert all incomming funds into bitcoin and sent them to a bitcoin address under the control of the seller.
The seller runs away with the money (bitcoin) and never ships the goods. The buyer attempts to track the seller using the banking transaction and finds out about the service used. The service operator discloses the bitcoin address (e.g. when law enforcement gets involved), but cannot provide any further information about the seller.
Is is possible to track down the seller using publicly available information from the blockchain?
Please ask a clearer question and point out how it is bitcoin-related. To my knowledge there exist no bank account that automatically converts incomming fiat money (wire transfers) into Bitcoin. Independent thereof, if a person "buyer" sends fiat money via wire transfer and finds himself defrauded, he wants to trace the wire transfer to the bank account owner ("scammer"). Whether the scammer walks away with gold, bitcoin or USD cash is irrelevant if the bank cannot identify him. – Jan – 2013-01-19T18:07:20.847
Im from another country, and here it is possible to buy bitcoins by transfering money directly from bank, using reference number/code. There is a company that does that. – user2657 – 2013-01-19T18:20:18.243
OK, I see, I have edited your question to make this clear. Hope this passes peer review. – Jan – 2013-01-19T19:11:05.663
Realistically, law enforcement probably wouldn't get involved. The operator of the Bitcoin service would be on the hook because the buyer would reverse the payment. Operators of Bitcoin services have had very little luck getting law enforcement involved when they get ripped off. (This is why such services don't exist. Scammers force them to raise their rates to cover fraud loss. That chases off legitimate users. And then the service's bank accounts get closed because of all the fraud. Game over.) – David Schwartz – 2013-01-23T07:26:41.357