U.S. investigators now have evidence that some bank officials may have impeded internal efforts to scrutinize customer accounts and to report suspicious transactions, according to the person who described the armored car runs and another person familiar with the investigation. Some of the activity the authorities are said to be looking at occurred under the watch of a compliance officer who Rabobank poached directly from its regulator to get its house in order.
Furthermore, some bank officials may have tried to cover up the alleged activity by withholding documents from the Office of the Comptroller of the Currency, the people said. Federal authorities could view any such actions as obstruction of justice.