Ah, credit/debit card fraud. What fun. Federal law changed the "Burden of proof" standard GREATLY in the late 1990s. Prior to those reforms, the victim was placed in the impossible position of proving that they DIDN'T run up the charges on a card or account. "Proving a negative" is a tall order for anyone, so victims got screwed in two directions--sometimes stuck with the pay-off, and almost always getting their credit rating trashed.
This was profoundly wrong, but that was the state of the law for may years in many states. Recognizing the inherent injustices, and seeing what obscene profits banks and credit card companies raked in, the game got changed by Congress to the present condition--where the burden of proof was on the bank/lender to prove fraud on the part of the account holder. THAT is very infrequent, in the real world--and now that most ATMs have camera capability (Mr. Laundrie learned this recently) it is a poor risk for perps regardless of status.
Banks hate this sitch, and they will not often cooperate with investigating agencies handling fraud cases. They are the victim of record--but they refuse to provide transaction records unless compelled to do so by search warrant or subpoena. That is known in some realms as a "Hostile witness", and if a victim doesn't want to be a victim......well, TAKE OFF, HOSER. So, losses mount up and fraudsters operate at low risk--because banks are vindictive, spiteful little pissants. They get their pound of flesh, though--interest rates on credit card balances are usurious, 20%-29% in most states. It is hard to feel sorry for banks as "victims", given their track record of customer goodwill.
Those ATM cameras are a godsend, though--and totally worth writing a search warrant to obtain the transaction pics. I closed SO MANY CASES related to misuse of credit/ATM cards stolen in auto theft, burglaries, robberies, and actual customer fraud with those pics.