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The 'sniffer' drone helicopter

Marty Jopson looks at the cutting edge of drone technology and watches the 'sniffer drone', developed by Rotherham company Martek Marine, being tested in Sweden.

This helicopter drone can hover over shipping to 鈥榮niff out鈥� and identify high pollution levels.

The drone has the potential to be used for detecting people lost at sea and in border control operations.

3 minutes

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