Legal analysis: Defending criminals is because the right of defense is a basic human right. Anyone may face criminal prosecution, and the individual is very small in front of the state machine. The right of defense is a kind of restriction and supervision on the public power of the state, which enables it to evaluate the behavior of criminal suspects fairly and objectively and prevent arbitrary conviction. No one can be convicted without a court trial, and he certainly has the right to be defended. It is the public security organs and procuratorates that accuse criminal suspects and defendants of committing crimes. Criminal suspects and defendants are obviously in a weak position. From the perspective of protecting human rights, they must be given the right to protect themselves and others.
Legal basis: Article 130 of the Constitution of People's Republic of China (PRC), the people's courts try cases in public, except for special circumstances stipulated by law. The defendant has the right to defend himself.