An elite group of police officers have the job of identifying each suspect captured on CCTV.
Known as super-recognisers, these policemen have the ability to match faces on camera to those stored in their photographic memory.
This exceptional ability has helped prosecute hundreds of people who took part in last summer's troubles.
More top news
Sunday will be dry with some long spells of sunshine across the region, but feeling colder in the easterly breeze.
Chelsea Football Club has "apologised profusely" to Gary Johnson who was sexually abused and "suffered unacceptably" as a youth team player.
A man has been jailed after his victim was found slumped in a car with stab wounds in east London.