Germany's top security official is extending tests of automatic facial recognition technology after an initial six-month trial showed the system had a good success rate.
The tests used high-quality pictures of more than 200 volunteers to identify them as they passed through Berlin's Suedkreuz railway station.
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Interior Minister Thomas de Maiziere said Friday that cameras spotted the volunteers more than 70 percent of the time, with the wrong person flagged in less than 1 percent of cases.
De Maiziere said a second six-month trial will test whether the system can recognize a person as effectively using lower-quality images, such as when no police mug shot of a fugitive is available.
He wants to roll the system out at train stations and airports nationwide if the second tests succeed.