01/31/2011 05:12 am ET Updated May 25, 2011

Forged Comment Letters Sent To Regulators Writing Derivatives Rules

Nov. 30 (Bloomberg) -- Forged comment letters purportedly from an H.J. Heinz Co. executive, a Burger King Co. franchise and at least five other Arkansas-based officials or businesses were sent to the Commodity Futures Trading Commission.

Some of the letters to the agency, which is writing rules for derivatives trading, contain identical passages criticizing banks for their "cartel-like control" of the $583 trillion swaps market.