A man sent a DVD to bereaved families from the July 7 attacks claiming the four London suicide bombers were "innocent patsies", a court has been told.
One of the packages included a letter to John Hyman telling him his daughter Miriam did not die in the Tavistock Square bus blast but was murdered by the security services at Canary Wharf in London, Southwark Crown Court was told.
John Hill, 63, denied two counts of attempting to pervert the course of justice by posting six copies of the DVD to the foreman of the jury and one to the judge, Mr Justice Gross presiding over a 2008 trial at Kingston Crown Court linked to the suicide bombings.
Both packages were intercepted by court staff before they reached the intended targets, the court was told. They were later traced by DNA and fingerprinting to Mr Hill, who was living in Carrick Street, Kells, County Meath in the Irish Republic.
The court heard Mr Hill had sent copies of the same DVD to six of the bereaved families between 2007 and 2008.
Annabel Darlow, prosecuting, told the jury: "The video which you will watch as part of the evidence in this case was one which stated that the bombings which took place in London on July 7 2005 were in fact the product of a government conspiracy.
"The four Muslim men identified following extensive police investigation as the bombers were in fact no such thing, claimed this DVD.
"They were innocent patsies set up by the powers that be in order to take responsibility for the atrocities on that day and the deaths of 52 innocent people which ensued."
She said the letter addressed to Mr Hyman had said: "I do not believe Miriam was on the number 30 bus. I don't think you believe that either. I believe she went to Canary Wharf, witnessed and photographed the murder of the Muslim patsies and was murdered by the security services to silence her."