Legal analysis: In order to protect the legitimate rights and interests of criminal suspects to the greatest extent, criminal defense lawyers should not only master the legal provisions of this kind of crime in China and the judicial interpretation of the Supreme Court, but also know the provisions of criminal law on crime and non-crime, this crime and that crime; We also need careful thinking ability, grasp the actual case of the criminal suspect, and then combine the actual case with the provisions of national laws, trying to find out the essential difference between the criminal suspect's behavior and the provisions of the criminal law, so as to avoid the judicial organs from convicting the criminal suspect accordingly. If the criminal suspect has indeed constituted a crime, there is no doubt that the lawyer's duty is to try to find the legal basis and factual reasons for the criminal suspect to reduce his punishment. In a word, the task of criminal defense lawyers is to provide effective defense for criminal suspects as much as possible according to the laws and regulations of China.
Legal basis: Article 37 of the Criminal Procedure Law of People's Republic of China (PRC), defenders put forward materials and opinions on the innocence, light crime or reduction or exemption of criminal responsibility of criminal suspects and defendants according to facts and laws, so as to safeguard the litigation rights and other legitimate rights and interests of criminal suspects and defendants.