The murder of Wolverhampton teenager Ronan Kanda in 2022 highlighted a serious issue around illegal online knife sales in the UK; speaking at the recent Police Superintendents’ Association conference, Metropolitan Police Commander Stephen Clayman, the National Police Chiefs’ Council (NPCC) lead on knife crime, explored the threat posed by irresponsible retailers and third-party sellers – and how the police aim to tackle it, as Policing Insight’s Tina Orr Munro reports.