The prototype Roadside Impairment Test Device presents a series of psychomotor tests designed to reveal drink or drug taking (Image: Home Office Scientific Development Branch)
IN A government lab in a bleak, misty field in the middle of the English countryside, I am playing with a gadget that looks not unlike a PlayStation Portable. I have to press one button when an arrow on the screen fleetingly points to the right, and another when it points to the left. How quickly I respond is used as a measure of my sobriety.
Forget breathalysers and walking the line: tomorrow’s drunk or…
