At the end of each summer for the last 14 years, the small Welsh town of Porthcawl has been invaded. Every year its 16,000 population is swamped by up to 35,000 Elvis fans. Many people attending the yearly festival look the same: they slick back their hair, throw on oversized sunglasses and don white flares. At 2017's Elvis festival, impersonators were faced with something different. Police were trialling automated facial recognition technology to track down criminals.
May-5-2018, 04:05:49 GMT