Police are to use drones at the Notting Hill Carnival for the first time to try to keep attendees safe as some two million people descend on west London for the annual event.
Organisers say 7,000 officers and staff will be on site today and tomorrow with live facial recognition cameras and screening arches to detect weapons at the busiest entry points.
If follows police warnings that the sheer volume of people in such a small residential area could cause 'a mass casualty event'.
And the family of a young mother attacked in front of police last year called the event 'unmanageable' and said it should be moved to a safer location.
Cher Maximen, 32, was stabbed in front of her three-year-old daughter on the carnival's family day in an unprovoked attack after she was caught up in a street fight. She later died in hospital.
