Property investors in ganja warfare

In the UK, though, plants grow very well indoors, thanks to central heating.

Propertyweek.com recounts the tale of a London landlord who happily handed over the keys to his Ipswich three-bedroom home to a well dressed young man in his thirties who drove a BMW X5. The tenant said he was going to live there with his parents.

Three months later, Trevor Hatcher found this tenant had turned the top floor of the house into a cannabis factory. "There were holes in the ceiling, polythene on the walls and the electricity supply had been rewired to bypass the meter: ‘That cost us £12,000, and that's only a three-bedroom semi-detached house,' Hatcher told Propertyweek.com.

The property news site tells us that cannabis factories are a growing concern in the United Kingdom. Commercial landlords can fall victim too, it says, publishing a picture of a bobby literally up-to-her eyeballs in flourishing dagga plants in one such indoor factory.