1. In the investigation stage of public security organs and procuratorial organs, lawyers can intervene.
According to the provisions of Article 96 of the Criminal Procedure Law, a criminal suspect may hire a lawyer as an agent to provide legal advice, complaints and accusations after the first interrogation by the investigation organ or from the date when compulsory measures are taken. If the suspect is arrested, the lawyer hired can apply for bail pending trial. In cases involving state secrets, the criminal suspect's employment of a lawyer shall be approved by the investigation organ.
According to the above provisions, in one case, you may hire a lawyer to help you when you are suspected of an economic crime and are interrogated by the investigation organ for the first time. On the other hand, when one of the five compulsory measures is taken, such as compulsory summons, bail pending trial, residential surveillance, detention and arrest, lawyers can be hired to provide legal assistance.
2. Lawyers can intervene in the prosecution stage and the trial stage.
According to Article 33 of the Criminal Procedure Law, the criminal suspect has the right to entrust a defender from the date when the case is transferred for examination and prosecution. The defendant in a case of private prosecution has the right to entrust a defender at any time. The people's procuratorate shall, within 3 days from the date of receiving the case materials transferred for examination and prosecution, inform the criminal suspect that he has the right to entrust a defender. The people's court shall, within 3 days from the date of accepting the case of private prosecution, inform the defendant that he has the right to entrust a defender. ,
According to the provisions of Article 35 of the Criminal Procedure Law, the responsibility of the defender is to provide materials and opinions to prove that the criminal suspect or defendant is innocent or the crime is light, to reduce or exempt his criminal responsibility, and to safeguard the legitimate rights and interests of the criminal suspect or defendant.