Today's programme comes live from an off-road biking track in Yorkshire. Roving reporter Michelle Ackerley delves into the growing problem of motorbikes being used to commit crimes and discovers how local police officers are tackling the illegal and dangerous use of off-road motorbikes. In the studio, former detective Rav Wilding appeals for your help to identify criminals caught on CCTV and track down wanted faces.

Michelle Ackerley is in Leicester, where she meets leading forensic scientists who are investigating historical mysteries and modern-day cases. Back in the studio, former police detective Rav Wilding marks the 35th anniversary of Neighbourhood Watch and warns viewers of the latest scam affecting people with disabilities who need specialist assistance dogs.