London saw one fire a fortnight last year, thanks to the capital’s burgeoning cannabis industry.
According to the London Fire Brigade, the number of fires in homes that grew cannabis have more than doubled the number in 2010.
According to the London Evening Standard, the police have issued 13,000 warrants and closed down more than 440 cannabis factories since September 2012.
Cultivating cannabis needs a large amount of heating and lighting equipment that increase fire risks, fire chiefs said.
London Fire Brigade Third Officer Dave Brown said: “They’re often in top floors or lofts which means when a fire takes hold it spreads, destroying roofs and damaging neighbouring buildings.”
Detective Chief Superintendent Carl Bussey, who leads Operation Hawk to tackle drug-related crime, said: “Cannabis cultivation and drug dealing damage communities and generate organised and violent crime, money laundering and anti-social behaviour.”