Exclusive access to a special Greater Manchester Police car crime squad reveals the extent of Britain's fastest growing motoring fraud which has become known as crash for cash. Organised criminal gangs are deliberately forcing innocent motorists to run into the back of them at low speed so they get money from insurance companies for fake injuries and car repairs. We hear how Eastern European crooks have found a new way of stealing cars by using false bankers drafts and see how high tech jammers can stop us locking our cars.