Legal basis: Article 338 of the Criminal Law of People's Republic of China (PRC), in violation of state regulations, discharges, dumps or disposes of radioactive wastes, wastes containing infectious disease pathogens, toxic substances or other harmful substances, which seriously pollutes the environment, shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention, and shall also or shall only be fined; If the consequences are especially serious, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than seven years and shall also be fined. Article 44 of the Criminal Procedure Law of People's Republic of China (PRC) stipulates that a defender or any other person shall not help a criminal suspect or defendant to conceal, destroy, forge evidence or collude with others, and shall not threaten or induce witnesses to commit perjury or engage in other acts that hinder judicial proceedings.