Mashable's Best: E-readers, robovacs, laptops, earbuds, smart home and more Look Up Say More Creator Hub Gift Ideas For Everyone On Your List Mashable Selects Versus Switch Off Trending Now Safety Net In My Bag VidCon with Mashable All Series How to watch PSG vs. Aston Villa online for free Joseph Green is the Global Shopping Editor for Mashable. He covers VPNs, headphones, fitness gear, dating sites, streaming, and shopping events like Black Friday and Prime Day. All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. We've been blessed with a summer of football, but there's still something special about the return of domestic football.

Mashable's Best: E-readers, robovacs, laptops, earbuds, smart home and more Look Up Say More Creator Hub Gift Ideas For Everyone On Your List Mashable Selects Versus Switch Off Trending Now Safety Net In My Bag VidCon with Mashable All Series Joseph Green is the Global Shopping Editor for Mashable. He covers VPNs, headphones, fitness gear, dating sites, streaming, and shopping events like Black Friday and Prime Day. All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. PSG vs. Arsenal in the Champions League final is available to live stream for free on RTÉ Player .

When thousands of football fans pour into Cardiff's Principality Stadium on June 3 to watch the final match of the UEFA Champions League, few will be aware that their faces will have already been scanned, processed, and compared to a police database of some 500,000 "persons of interest". According to a government tender issued by South Wales Police, the system will be deployed during the day of the game in Cardiff's main train station, as well as in and around the Principality Stadium situated in the heart of Cardiff's central retail district. Cameras will potentially be scanning the faces of an estimated 170,000 visitors plus the many more thousands of people in the vicinity of the bustling Saturday evening city center on match day, June 3. Captured images will then be compared in real time to 500,000 custody images stored in the police information and records management system alerting police to any "persons of interest," according to the tender. The security operation will build on previous police use of Automated Facial Recognition, or AFR technology by London's Metropolitan Police during 2016's Notting Hill Carnival.

Police in Cardiff will use facial recognition to track the 170,000 football fans expected to descend on the city for the Champions League final. The Welsh capital is gearing up to host the biggest crowd it has ever welcomed for the June 3 match when Real Madrid will take on Juventus at the Millennium Stadium. South Wales Police has been given £177,000 ($230,000) to pilot the facial recognition technology, which will monitor people on pre-determined'watch lists' These watch lists may include dangerous wanted or missing persons. Facial recognition identifies people by analysing the shape of a person's face. Each face has approximately 80 unique nodal points which distinguishes one from another.