ÃÛÑ¿´«Ã½

The British 'super recognisers' from London's Met police force can remember 95 percent of faces they have seen and use these skills to analyse CCTV and mobile phone footage to identify suspects. They're helping Cologne police find those behind the New Year's Eve attacks near the city's main police station. Dr Josh Davis, professor in psychology at the University of Greenwich, works with the Met Police to identify 'super recognisers'.

(Photo: A sign with a camera on it indicates CCTV in operation at the central station in Cologne, Germany. Credit: EPA/Oliver Berg)