Answer:
You're undoubtedly thinking of the 9th Circuit's infamous decision in the Lopez case. Initially, that court held that a bank could not exercise its right of offset against a deposit of Social Security or SSI benefit funds to cover an overdraft that had been previously incurred by the benefit recipient. Fortunately, upon rehearing, they reconsidered and reversed their decision. You can get full details on the case in the Court Watch section of BOL.
First published on BankersOnline.com 08/02/04