In 1998, former
MI5 officer
David Shayler alleged that British security services had received an advance warning of a plan to attack the embassy but took no preventive action. The
Crown Prosecution Service later confirmed a warning had been received, though it related to a different group than the one whose members were convicted. Then–
Home Secretary Jack Straw stated that MI5 could not have prevented the attack based on the available intelligence. Shayler's allegations were referenced in Botmeh and Alami's appeal by their lawyer
Michael Mansfield QC, who noted the type of explosive used in the bombing was unknown, and that Jack Straw had prevented disclosure of intelligence agency information. Another former MI5 officer,
Annie Machon, later said that an internal MI5 assessment concluded that the attack was conducted by
Mossad in order to smear local Palestinian activists. == Later developments ==