What are the authorization materials for criminal lawyers?

Legal subjectivity:

Power of attorney for criminal cases: 1. The legal representative of the victim in a public prosecution case, a close relative of the deceased victim, a person with no capacity or a person with limited capacity may entrust a lawyer as his agent ad litem. 2. After accepting the entrustment, the lawyer shall provide legal advice and other legal help to the client. 3. The attorney should ask the people's court whether the case is heard in public before the court session. If the case involves the privacy of the victim, it may request the people's court to hear it in private. 4. The lawyer informs the victim of the right to apply for the withdrawal of the members of the collegial panel, the clerk, the public prosecutor and the expert witness, and assists the victim in exercising this right. 5. During the trial, the attorney guides and represents the client to exercise litigation rights according to law. 6. During the trial, the attorney and the prosecutor cooperated with each other, exercised their appeal function according to law, and debated with the defendant and his defender. If the opinions of agency are inconsistent with those of public prosecution, the opinions of agency shall be expressed independently from the perspective of safeguarding the legitimate rights and interests of the victims. 7. If the victim and his legal representative refuse to accept the judgment of first instance, the attorney may, within five days after receiving the judgment, assist or represent the client and request the people's procuratorate to protest.

Legal objectivity:

Article 3 of the Provisions on Legal Aid in Criminal Procedure stipulates that the victims of public prosecution cases and their legal representatives or close relatives, and the private prosecutors and their legal representatives of private prosecution cases may apply for legal aid from the legal aid institutions affiliated to the judicial administrative organs at the same level where the people's procuratorates and people's courts are located if they fail to entrust their legal representatives due to financial difficulties.