Boris Karpichkov, who fled to Britain after 15 years as a KGB agent, claims a London intelligence contractor linked to MI5 told him Dr Kelly’s death was not suicide.
Mr Karpichkov has emailed his evidence to Attorney General Dominic Grieve – who has already said he is ‘concerned’ by questions raised by doctors who dispute the official suicide ruling over the Iraq expert’s death.
Last night a spokesman for Mr Grieve confirmed that the dossier had been received, and that it was being ‘considered’.
Dr Kelly’s body was discovered in woods close to his Oxfordshire home in July 2003.
Tony Blair’s Labour Government had controversially unmasked him as the source of a hotly-disputed BBC news story that claimed a dossier used to justify the war on Iraq had been ‘sexed up’.
Lord Hutton’s public inquiry ruled that Dr Kelly killed himself, but since the ousting of Labour in May there has been growing pressure from within the coalition Government for a new independent inquiry.
A group of doctors have claimed Dr Kelly could not have died as a result of cutting his left wrist with a blunt garden pruning knife, and it has emerged that his death certificate was left incomplete.
There is also outrage at the fact that full details of his postmortem examination are to be kept secret for 70 years, and that no inquest took place.
Hat Tip: Free West Radio