Face-reading AI will tell police when suspects are hiding truth

Key points of a facial recognition system are displayed on a screen during a demo at a Nuralogix Corp. exhibition stand during the CES Asia Show in Shanghai, China, on Tuesday, June 11, 2019. The tech event runs through June 13. Photographer: Qilai Shen/Bloomberg

American psychologist Paul Ekman’s research on facial expressions spawned a whole new career of human lie detectors more than four decades ago. Artificial intelligence could soon take their jobs. 

While the US has pioneered the use of automated technologies to reveal the hidden emotions and reactions of suspects, the technique is still nascent and a whole flock of entrepreneurial ventures are working to make it more efficient and less prone to false signals.