Fans of The Wire will remember how the fictional Omar Little made a livelihood off robbing drug dealers. Now imagine how much easier his job would have been if he had his own eye in the sky. While police departments in the US are now starting to adopt drone technology for surveillance, some criminals in England have been turning the technology to their advantage to target victims—specifically, marijuana growers.

According to a report in The Independent, criminals have taken a page out of the playbook of law enforcement and the military, using drones to carry an infrared camera aloft to search for the heat given off by the grow lights used by large-scale pot growers. Once spotted, the criminals move in to steal marijuana or extort the growers for a cut, according to one man who claimed to be involved in such a scheme.

“It’s not like I am using my drone to see if they have nice televisions,” he told the Halesowen News, the local newspaper of a community outside Birmingham. “I am just after drugs to steal and sell… If you break the law then you enter me and my drone’s world. Half the time we don’t even need violence to get the crop. Growing cannabis has gone mainstream, and the people growing it are not gangsters.”