Police have left desirable items including car keys, laptops and other electrical items in full view from the street to lure criminals.
If a burglar tries to enter the home, they will be caught on camera and sprayed with Smartwater.
The invisible coded dye stays on skin and clothing for months. The initiative has so far led to three arrests.
Ch Supt Howard Crowther said: "Anyone sprayed by the solution and caught on camera will actually have no idea and will think they have got away with it but already we have three people arrested and it is too late for many others.
"If you have recently committed a burglary let your family know you may be away for Christmas and you could well be on our list."
Mr Crowther said the operation showed how important it was not to leave valuables on display.
"The most effective crime prevention methods are often the cheapest. Just by ensuring your doors and windows are locked whenever possible will massively reduce your chances of becoming a victim of burglary."
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