Legal basis: Article 31 of the Lawyers Law of People's Republic of China (PRC), when a lawyer acts as a defender, he shall, according to facts and laws, put forward materials and opinions on acquittal, lighter punishment or reduction or exemption of criminal responsibility of criminal suspects and defendants, and safeguard the litigation rights and other legitimate rights and interests of criminal suspects and defendants.
Article 37 of the Criminal Procedure Law of People's Republic of China (PRC) It is the defender's responsibility to fulfill the obligations stipulated in Article 31 of the Lawyers Law of People's Republic of China (PRC). In other words, the defender put forward opinions that are not conducive to the defendant and the appellant in court, which violated the legal duties of lawyers.