So far it was very tough to detect thieves but now with the help of SelectaDNA Forensic Coding, an anti-burgling system, will be able to prevent such incidents, if implemented. Its working is very simple, the burglers will be sprayed by a mist of DNA which is detectable under ultraviolet light. These DNA marks will be specific by location, so it wouldn't hard to fine right burgler for specific incident.
So far its just implemented by Rotterdam’s police department in a McDonald’s, actually the idea is to create fear to prevent illegal activities. Thats why the have put a sign board outside: ‘You Steal, You’re Marked.’
The New York Times reports:
The new system involved an employee-activated device that sprays a fine, barely visible mist laced with synthetic DNA to cover anyone in its path, including criminals, and simultaneously alerts the police to a crime in progress.The mist — visible only under ultraviolet light — carries DNA markers particular to the location, enabling the police to match the burglar with the place burgled. Now, a sign on the front door of the McDonald’s prominently warns potential thieves of the spray’s presence: “You Steal, You’re Marked.”
The police acknowledge that they have yet to make an arrest based on the DNA mist, which was developed in Britain by two brothers, one a policeman and the other a chemist. But they credit its presence — and signs posted prominently warning of its use — for what they call a precipitous decline in crime rates (though they could not provide actual figures to back that up).
But the goal is not so much capturing crooks as scaring them away. “The whole thing is prevention, not about recovering stolen goods or capturing criminals,” said Donald van der Laan, whose company, the Rhine Group, distributes the spray. As far as the DNA is concerned, “the material is identical” to human DNA, he said, “though there is a different sequence of components.” Much of the spray’s effectiveness, he said, comes from the mystique surrounding DNA.