British police used a remote-controlled spy drone to watch crowds as an outdoor festival this month. It was the first deployment for such a device in public.
The 70cm-wide flying surveillance device, fitted with high-resolution still and colour video cameras as well as infrared night vision capability, was used to keep tabs on people thought to be acting suspiciously in car parks and to gather intelligence on individuals in the crowd. [...]
The battery-operated drone's four carbon-fibre rotors are so quiet they cannot be heard from the ground once it is higher than 50 metres, and at 100 metres up it cannot be seen with the naked eye. It can fly 500 metres high, but the Civil Aviation Authority has set an operating limit of 120 metres. The vehicle, which takes off vertically, can be flown even when out of sight, because it beams images back to video goggles worn by the operator. [...]
One tactic is to fly the drone over groups of young people causing a nuisance in parks. The force has also used it for covert surveillance. [...]
The Metropolitan police is interested in using drones to police the Olympics. Firearms officers also believe they could be useful in a standoff with armed criminals
MW Power, the company that distributes the technology in the UK, plans to improve the drone's capability by adding a so-called “smart water” spray - a liquid infused with unique artificial DNA sequences which can be squirted on to a suspect from above. It infuses their clothes and skin and the DNA code can be used later to identify them.
There is no legal barrier preventing a private security firm or a paparazzo photographer from using the technology, but MW Power said that it was only licensing the vehicle to customers from the military or emergency services. It costs less than £1,000 a month to lease - an amount that would buy less than an hour's use of a conventional helicopter.
Some experts fear it represents an unwarranted intrusion of privacy.“ [Source]
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