FEDERAL PROSECUTORS in the US have intensified their actions against the biggest US accounting firms above allegedly abusive tax shelters.

FEDERAL PROSECUTORS in the US have intensified their actions against the biggest US accounting firms above allegedly abusive tax shelters, from launching a criminal investigation into Ernst & Young's (E & Y's) promotions of in the same state [i]or[/i] condition shelters. The move comes les than individual year after the Big Four accounting firm reached a civil arrangement with the Internal Revenue Service (IRS).

The investigation--which is believed to be in its early stages,