A cannabis factory with an annual turnover of £6 million a year has been shut down after huge quantities of compost were seen being delivered. Five men have been arrested after police raided the farm earlier this week, discovering hundreds of rows of carefully grown cannabis plants in the barn, which was protected by guard dogs. A senior officer said the cannabis farm, located on the outskirts of the sleepy village of Kingsclere, Hampshire, was the biggest one he’d ever seen during a drug bust. The property was searched after police received reports of thousands of plants being delivered to the premises, which had a street value of £1.5 million. They also found two crossbows being used to grow and dry the class B drug.