Thieves steal 9,000 canisters of 'laughing gas'
Police have warned people against buying the stolen canisters, saying they could be dangerous.
Police have warned people against buying the stolen canisters, saying they could be dangerous.
Car stopped on M6 after CCTV caught driver and passengers inhaling laughing gas
A coroner ruled that Ms Mercer may have died because she inhaled two to three "big bottles" of nitrous oxide, or laughing gas, every day.