from RT.com: A Subway restaurant in Knoxville, Tennessee is now equipped with a product known as SelectaDNA, which aims to tag anyone who breaks in with an identifying spray containing a DNA code viewable only under ultraviolet light.
The "intruder spray," as it is nicknamed, contains “a unique DNA code which can be used to uniquely mark and trace both items of property and criminals," according to its manufacturer, SelectaDNA.
The spray's US distributor, Johan Larsen, told the Knoxville News-Sentinel that the product is already in use in Australia and Europe.
The newspaper's report said the spray is "traceable for weeks," and can only be viewed “with a glow under ultraviolet light.”
If not identified by ultraviolet light, a suspect's clothing, for example, could be tested to see if the spray's owner-specific synthetic DNA is a match.