Scientists from the Defence Science and Technology Laboratory (Dstl) will shortly conduct an environmental survey across a number of different locations to detect and identify traces of explosives that are present in the general environment. The data is used to understand the level of explosive traces in our environment and can be used to interpret evidence gathered at potential crime scenes to aid the criminal justice system and maintain the security of the UK.
Surveys such as this are routine and this work is not connected to any specific threat.
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Source: GOV.UK
