Landmark changes to operational policing will be trialled from today in an attempt to boost transparency and accelerate convictions.
Officers with the Metropolitan Police will wear tiny cameras attached to their uniform, designed to capture evidence at scenes of crime and help support prosecution cases.
A total of 500 cameras will be distributed to 10 London boroughs during the trial, which is thought to be the largest in the world.
Firearms officers will also be testing the cameras in their training environment with a view to wearing them if the pilot is successful.
It follows criticism of the Met following the death 29-year-old Mark Duggan at the hands of armed officers, which sparked the 2011 riots.
More top news
He suggested people who are not concerned about the new notes donate their bodies for 'decorative use in future five pound notes'.
Tens of thousands of people lined the streets of Chapecó for a memorial ceremony honouring footballers killed in a plane crash.
Drivers with remote locking vehicles are being advised to manually check their cars are locked before leaving them.