Knife and gun crime on rise in UK

Knife and gun crime and acid attacks across the UK are on the rise. There were over 34,000 knife incidents alone last year. Channel 4 News has been given access to the ward of one of just four major trauma centres in London, St George’s in Tooting, to observe doctors working on the frontline, alongside youth workers, to interrupt the cycle of violence. A warning: there are some graphic scenes in this report.