GO 20 was launched today in Islington, London's first 20mph borough.
Children heard from Paralympian Danny Crates on how great it is to be active, took part in a safe cycling demo with Islington Council, carried out speed checks on traffic with help from the Met and celebrated 20mph by displaying their own banners and placards.
More top news
Sir Bernard Hogan-Howe made the comments as an independent review into the way rape allegations are investigated.
Sir Bernard Hogan-Howe described the standard of an annual fitness test that officers must complete as too low.
Dry and cloudy tonight, winds easing. Lows of 9C.