The row centres on Paul Martin, a career MI5
agent working as Parliament's security director while regularly briefing senior spooks.
DADDY He is the powerful mastermind who leads the MI5
team and is known only by his nickname.
Property developer Philip Kerr, a friend of drugs kingpin Curtis Warren, took MI5
to court over allegations he has been bugged and stalked.
Three of the men said they had been detained at foreign airports on the orders of MI5
after leaving Britain on family holidays last year.
was also sharply criticised by the 7/7 coroner in 2011 when she raised serious concerns about how MI5
, also known as the security service, investigates and prioritises suspects, warning that poor record-keeping could allow flawed decisions to slip through with "dire consequences".
Critique: The British security service commonly known as MI5
(Military Intelligence, Section 5), is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (SIS; also known as MI6) focused on foreign threats, Government Communications Headquarters (GCHQ) and Defence Intelligence (DI).
The report will set out exactly what MI5
knew about Michael Adebolajo and Michael Adebowale before the attack.
spymaster Andrew Parker was so touched by the letters from the 40 pupils that he sent an unprecedented personal response.
When they asked English teacher John Atkinson what real spies were like he suggested they write to MI5
, never expecting a reply.
As part of the campaign, MI5
has set up an online quiz game, voiced by a female language analyst with a Brummie accent.
But lawyers for MI5
, also known as the Security Service, said it had learned lessons from the background to the July 7 2005 attacks on London.
Asked to describe how the meeting would have been viewed by MI5
, Witness G said: "It would have been seen as a social gathering, but a social gathering of those who are like-minded extremists".