Key Facts

• The British Transport Police will deploy a drone team at the Notting Hill Carnival to improve safety.
• This will be the first time drones are used at the event, which is Europe's largest street party with about two million attendees.
• The drones have four cameras, including thermal imaging, and can identify people from 80 meters away.
• Live images from the drones can be sent to officers on the ground or a control room.
• The drones include a laser rangefinder that provides GPS coordinates of objects over a kilometer away.
• The Met Police have highlighted crowd safety concerns, referencing risks like a mass casualty crowd crush.
• Live facial recognition technology will also be used, though its accuracy has been questioned by civil rights groups.
• Public transport changes, including tube and bus diversions, are planned to accommodate carnival-goers.