It is one of those glass half full things. If you have been the victim of a mugging then you will start seeing scooter-gangs everywhere, before you never notice

It is one of those glass half full things. If you have been the victim of a mugging then you will start seeing scooter-gangs everywhere, before you never noticed them and crime was only something you read about. Incidentally these guys are quite a London thing, so if you are at the traffic lights on your bike/scooter/car and you see two or more scooters with no number plates and pillion passengers then you might want to start saying your prayers. The former chancellor of the exchequer had his phone nabbed by the legendary moped gang thieves so it is not only in areas that are deprived where crime is a problem. Don't walk and text in Central London, you will only be asking for it. They wear helmets and balaclavas underneath so I do not see how facial recognition can help. Only arming the public with fully automatic assault weapons can deter these ultra-violent thugs who happen to normally be only 15 years old.