As part of his On Drugs podcast, presenter Jacob Hawley spoke to Dr Michael Shiner of StopWatch UK about the psychology of criminality and disproportionate stop and searches.
Jacob also interviewed policing priorities from Lawrence Gibbons, head of drugs threat for the National Crime Agency, as well as the practicalities of policing from ex Met detective Paul Sharky and former special constable Joseph Kaz, who spoke out about his concerns on live TV earlier this year.
You can listen to the interview on the BBC website (the topic of stop and search appears 12 minutes in). You can click on the image to link to the podcast page for the episode titled 'Police and policy').