legal ground
Article 144 of the Criminal Law of People's Republic of China (PRC)
Whoever adulterates toxic and harmful non-food raw materials in food produced or sold, or sells food that is knowingly adulterated with toxic and harmful non-food raw materials, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also, or shall only, be fined not less than 50% but not more than two times the sales amount; Whoever causes serious food poisoning accidents or other serious food-borne diseases and causes serious harm to human health shall be sentenced to fixed-term imprisonment of not less than five years but not more than ten years, and shall also be fined not less than 50% but not more than two times the sales amount; Whoever causes death or especially serious harm to human health shall be punished in accordance with the provisions of Article 141 of this Law.