As London's armed gangs branch out of the capital and take over drug running, human trafficking and child exploitation, police warn that they are preparing for a massacre of the middle classes.

City gangs flooding suburban towns with class A drugs felt the full force of the law last week as the menace of London gang violence threatens to spread to every UK town.

Middle-class havens like Cambridge are seeing Yardie-style gangsters threatening rivals with guns and acid attacks to seize control of trade.

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