Frontline Fightback

We see how criminals are cashing in on the popularity of cycling – and how one cyclist is using the power of social media to take matters into his own hands and fight back against bike thefts. He has helped recover more than 500 stolen bikes, returning them to their rightful owners.

We also feature the story of a 73-year-old motor mechanic who had his van broken into. A collection of tools that had taken a lifetime to build up were stolen, but the local community rallied round to support him. Across the UK, four out of five tradespeople have had their vans broken into and their tools stolen. It's a crime that has a huge impact on many businesses. We look at how technology such as body heat sensors are helping to crack down on van thieves.

Also on the programme, a new DNA technique helping forensic artists to sketch the faces of criminals.

A family-run farm is blighted by thefts and break-ins. We hear about the impact it has on life in rural communities, and how new security systems that don't rely on a good internet connection are helping to protect businesses in more remote areas.

We also see how data captured by mobile phone masts helped to bring a pair of prolific burglars to justice. And smart number plate recognition cameras that can detect when a car is on false plates.

A vehicle forensics expert helps piece together the evidence following a ram raid on a jeweller's shop in Leeds. By extracting data from the vehicle's infotainment system, the expert discovers vital leads that ultimately help to bring an organised criminal gang to justice.

We also visit a pharmacy in Birmingham that is taking a stand against shoplifters by creating a 'wall of shame'.

And a tech company develops a bodycam that will help shopkeepers identify prolific shoplifters and abusive customers.