Police commissioners have urged the Met to put ultraviolet dye in its new water cannon in order to track people hit by the weapons, Boris Johnson's policing boss has said.
Stephen Greenhalgh, Deputy Mayor for Policing and Crime, told members of the London Assembly that police and crime commissioners from around the country had advocated the use of "SmartWater" in the crowd control weapon.
The substance would remain invisible until those hit by the water had an ultra-violet light shone on them, at which point it would glow fluorescent yellow and identify them as having been at a protest or other public order situation.
Comment: Suppose you have been identified as having done some protesting. So what!? Considering that being in a public protest is not a crime, and that there are many reasons why you might get yourself sprayed by a water cannon - none of which prove culpability of a criminal act - what purpose can this idea have if not to intimidate and discourage the average citizen from exercising their democratic right to take part in a demonstration??
Comment: Psychopaths self-select to be part of groups like ISIS. No different than the police, Mossad, CIA, Gladio, etc. They know they can get away with murder ... literally. Such groups provide the perfect plausible lies (vengeance, protection, political change, preventing terrorism) for what is really just cold-blooded murder.