Episode 6

We see how a driver is ambushed by carjackers in a dramatic and terrifying incident outside his home in Birmingham. Data downloaded off their mobile phones helps link the gang to nearly 100 car thefts and break-ins around the Midlands.

We also hear about the work being done to reduce knife crime by a father whose 19-year-old son was stabbed to death in an unprovoked attack.

And how Northamptonshire Police are using a mobile forensics lab to bring science to the crime scene.