Scooter crime is exploding in London and police numbers have been falling for a decade.

Personally I've had 3 scooter thefts on the past year, including a bike jacking at a red light - more a robbery than theft.

All these criminals wear balaclavas even if they're not wearing helmets, and they're used to using countermeasures against CCTV, so facial recognition isn't likely to make a big difference to them.