Feel like you're being watched? CCTV 'armour' detects when you're under surveillance and lets you know with 'tap on the shoulder'

http://www.dailymail.co.uk/sciencetech/article-2523755/Feel-like-youre-watched-CCTV-armour-detects-youre-surveillance-lets-know-tap-shoulder.html#ixzz2nbGe482E

The shoulder pad detects the infrared light used by CCTV cameras

It then sends an electrical pulse to the wearer's shoulder

Designer says sensation replicates a policeman's tap on the shoulder