milk bottles as a method of pasteurization due to the lack of knowledge and concern regarding formaldehyde's toxicity. in 2011 in nakhon ratchasima, thailand, truckloads of rotten chicken were treated with formaldehyde for sale in which "a large network," including 11 slaughterhouses run by a criminal gang, were implicated. in 2012, 1 billion rupiah (almost us$100,000) of fish imported from pakistan to batam, indonesia, were found laced with formaldehyde. formalin contamination of foods has been reported in bangladesh, with stores and supermarkets selling fruits, fishes, and vegetables that have been treated with formalin to keep them fresh. however, in 2015, a formalin control bill was passed in the parliament of bangladesh with a provision of life-term imprisonment as the maximum punishment as well as a maximum fine of 2,000,000 bdt but not less than 500,000 bdt for importing, producing, or hoarding formalin without a license. formaldehyde was one of the chemicals used in 19th century industrialised food production that was investigated by dr. harvey w. wiley with his famous 'poison squad' as part of the us department of agriculture. this led to the 1906 pure food and drug act, a landmark event in the early history of food regulation in the united states.