„The impression of the family is that the unknown third party was a member of some agency specialising in the dark arts of the secret services, or evidence has been removed postmortem by experts in those dark arts.“

The mathematics prodigy worked as a cipher and codes expert for GCHQ, the government listening station, but had been on secondment with MI6 since March 2010. (…)

Experts agreed locking the bag from the inside „would have been very difficult, if not impossible“, Metropolitan police lawyer Vincent Williams has said.