On Thursday, Richard Barrett, former head of counter-terrorism at the UK’s foreign intelligence agency MI6, told BBC Radio 4 there were 7,000 live cases in Germany, stating there were 550 “really extreme potential terrorists on the books … In addition to that though if you include all the Lander (local regions) in Germany they have about 7,000 live cases. As you can imagine, that is an almost impossible number to control.” Barrett added that wider group of suspects were people who had “come to attention in this context of radical extremism” and were “worthy of investigation.”
Barrett was interviewed following the attack in Berlin truck attack in which the suspect, Anis Amri, was already known to the security services through traditional forms of intelligence. Amri used at least six different aliases under three different nationalities. He was killed by police on Friday near Milan, Italy.
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