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As France comes to terms with Friday's attacks in Paris, many people have asked how the terrorists were so well armed in a country with strict gun controls. Where do these weapons come from and how eas is it for terrorist groups to bring them to Europe?

Nic Jenzen-Jones, the director of the specialist technical intelligence consultancy, Armament Research Services, gives his insight into the ilicit trade.

(Photo: The seizure of AK47 guns. Credit: STR/AFP/Getty)