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"It's got a unique identifier, a tag on it. And it means that if anyone touches it, it's transferred on to the hands. It also tells us that the cover where it is stolen in Birmingham...
the person who has it on their hands has certainly dealt with it, either stolen it or received it, and that way we can prosecute those people with confidence."
Stephen Taylor, Drainage manager, Amey
A new forensic tagging system to try to reduce the number of drain cover thefts is being trialled in Birmingham.
Nearly a thousand covers have been stolen in the last eighteen months.
New DNA grease, similar to smart water, will be used to mark thousands of drain covers across the city.