Contributor(s): Yvonne Lawson, Professor Tom Kirchmaier, Carmen Vila-Llera, Janet Foster, Kerris Cooper | Knife crime in England and Wales hit a record high in 2019, up by 7% on the previous year. A disproportionate number of victims - and perpetrators - are young and disadvantaged. Exploring the question, ‘How do we stop knife crime?’, Joanna Bale talks to Kerris Cooper, Janet Foster, Tom Kirchmaier, Yvonne Lawson and Carmen Villa-Llera. Research links: Physical safety and Security: Policies, spending and outcomes 2015-2020 by Kerris Cooper and Nicola Lacey. The Real Sherlocks: Murder Investigators at Work by Janet Foster (due for publication in 2020)