The number of cannabis farms unearthed by police officers in Gloucestershire has rocketed. The figure has more than doubled in the last three years. New figures have revealed officers found 60 farms in 2011, compared to 38 in 2009 – a rise of 58 per cent. The statistics show the highest number of plants seized by officers from one premises in 2011 was 371. The number of people facing prosecution in 2011 also went up with 37 people charged, compared to 29 in 2009.