1. The investigation power, procuratorial power and judicial power shall be exercised by special organs according to law, and the principle of legal procedure shall be strictly observed. According to Article 3 of the Criminal Procedure Law, the public security organs are responsible for the investigation, detention, execution and pre-trial of criminal cases.
2. People's courts and people's procuratorates independently exercise their functions and powers according to law. According to Article 5 of the Criminal Procedure Law, the people's courts independently exercise judicial power and the people's procuratorates independently exercise procuratorial power without interference from administrative organs, social organizations and individuals.
3. The principle of division of responsibilities, mutual cooperation and mutual restraint. According to article 7 of the Criminal Procedure Law
4. The People's Procuratorate shall implement the principle of legal supervision of criminal proceedings according to law.
5. The principle that criminal suspects and defendants have the right to defense.
6. No one can determine the principle of guilt without the judgment of the people's court according to law.
legal ground
Article 37 of the Criminal Procedure Law: A defense lawyer may meet and correspond with a criminal suspect or defendant in custody. Other defenders, with the permission of the people's courts and people's procuratorates, may also meet and correspond with criminal suspects and defendants in custody.
If a defense lawyer holds a lawyer's practice certificate, a law firm's certificate, a power of attorney or a letter of legal aid to ask for a meeting with the criminal suspect or defendant in custody, the detention center shall arrange the meeting in time, which shall not exceed 48 hours at the latest.