The head of the UK’s largest police force says facial recognition technology could be the best new crime fighting tool since fingerprinting. But campaigners have called it ‘dystopian’.  To find out more about Tortoise: Download the Tortoise app - for a listening experience curated by our journalists Subscribe to Tortoise+ on Apple Podcasts for early access and ad-free content Become a member and get access to all of Tortoise's premium audio offerings and more If you want to get in touch with us directly about a story, or tell us more about the stories you want to hear about contact [email protected] Hosted on Acast. See acast.com/privacy for more information. Hosted on Acast. See acast.com/privacy for more information.