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Sniffer dogs learn to identify 'undetectable' explosives

8 November 2013 Last updated at 10:50 GMT

A canine academy in South Africa says it has found a way to train sniffer dogs to identify a previously undetectable type of peroxide-based explosive.

It is thought that TATP - or "Mother of Satan" - has been used in a number of terrorist attacks in recent years, but it is far too volatile to be used in training exercises.

Mark Eames reports.

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