How big is the lawyer's agency authority?

Criminal public prosecution cases are generally divided into three stages: investigation stage, examination and prosecution stage and trial stage. According to three different stages, the lawyer's authority is different. In the investigation stage, lawyers meet with criminal suspects, but only lawyers can meet at this stage and ask the criminal suspects about the case. The entrusted lawyer has the right to know the suspected charges of the criminal suspect from the investigation organ. What lawyers can do is to provide legal aid to criminal suspects. If the case-handling organ has illegal and criminal circumstances such as extorting a confession by torture in the process of handling the case, it may appeal and accuse on its behalf and apply for bail pending trial. You can put forward opinions to the case-handling organ on the situation of the case you have learned. After the review and prosecution stage, lawyers have the right to consult, extract and copy the relevant materials of the case; Have the right to meet and correspond with criminal suspects; Have the right to investigate and collect materials related to the case; Put forward defense opinions on the case to the people's procuratorate; If a criminal suspect is detained for an extended period of time at the stage of examination and prosecution, the defense lawyer has the right to demand his release or change compulsory measures according to law, and obtain bail pending trial. At the trial stage, the authority of the defense lawyer is basically the same as that of the review and prosecution stage. The difference is that defense lawyers appear in court according to law, participate in court investigations and court debates, and safeguard the legitimate rights and interests of defendants. After the judgment of the first instance, the lawyer has the right to obtain the judgment. During the appeal, the lawyer can meet the defendant, listen to his opinions on the content of the judgment and whether to appeal, and give legal help.