According to the law, criminal defense means that criminal suspects, defendants and others enjoy the rights of defenders according to law, and put forward opinions and reasons in favor of the defendants according to facts and evidence.
Legal objectivity:
Criminal procedure law
Article 37
The responsibility of a defender is to provide materials and opinions on whether a criminal suspect or defendant is innocent, light or relieved of criminal responsibility according to facts and laws, and to safeguard the litigation rights and other legitimate rights and interests of the criminal suspect or defendant.
Criminal procedure law
Article 38
Defense lawyers can provide legal aid to criminal suspects during investigation;
Acting as an agent for complaints and accusations;
Apply for changing compulsory measures;
Ask the investigation organ about the crimes and cases suspected by the criminal suspect, and put forward opinions.