The new series continues, focusing on the work of the police, paramedics and fire service in Wiltshire. Following the criminalisation of formerly legal highs, crack and heroin is on the up - and some of the users seem to be getting younger. A routine stop and search uncovers a bag of crack cocaine in the possession of a boy still in his teens. Arrests of teenagers for possession of crack by Wiltshire police have trebled in the past year. Having policed the streets of Swindon for over 10 years, PC Joe Tomkinson has witnessed this rise first hand: 'I think the general public, in truth, are oblivious to what is going on, and the face of drug use is changing. We've got people out there dealing drugs in their young teens that are riding push bikes because they aren't old enough to drive.' Joe says he's no longer shocked by what he sees: 'It's easy to look at someone who's a teenager, who's just starting to go off the rails and predict what path they are going to go down.'.