Madoff probe focuses on tax havens

"Sources close to the investigation said forensic accountants examining Madoff's books believed he had regularly sent large sums of money to offshore accounts in the Caribbean and Europe. "There are accounts at New York Mellon Bank that we have been looking at that appear to have sent and received money from offshore locations," a senior source said. Tracking down the money investors entrusted to Madoff is likely to be one of the longest and most complicated financial investigations on record."