The officials were reacting to Magnitsky's relatives and colleagues, who insist on a full investigation into his death.
Hermitage Capital Management says Magnitsky was arrested and subsequently died after uncovering a US$230 million tax fraud. Two tax officials that Magnitsky linked to the theft left Russia last May, according to a recent report the Federal Security Service (FSB).
Investigators maintain that it was Magnitsky and his accomplices who stole the money, and a Moscow court recently ruled that prosecuting him posthumously was not against the law.
Yesterday, the British House of Commons unanimously passed a bill in favor of imposing visa sanctions and asset freezes on the Russian officials they believe were involved in Magnitsky's death. This follows a similar move last year by the U.S. Government.