Ultraviolet scans showed his face was marked with SmartWater liquid - which is invisible, but stays on the skin for weeks.
Askale's face was stained by the invisible and odourless liquid
A thief caught by a new
police trap that turned his face bright green under ultraviolet light
has been convicted of stealing from a car.
Yafet Askale, 28, was sprayed with an invisible dye when he broke into a "trap car" in Harlesden in northwest London in June.Police traced him and found him holding items stolen from inside the vehicle, including a laptop computer.
Ultraviolet scans showed his face and jacket were marked with SmartWater liquid - which is odourless and invisible to the eye, but stays on