Can the defense lawyer question the witness?

Legal subjectivity:

You can see the victim, and the defender can investigate and collect evidence from the victim with the consent of the victim. However, in criminal proceedings, the criminal procedure law has some restrictions on lawyers' investigation and evidence collection. Legal basis: Paragraph 2 of Article 43 of the Criminal Procedure Law stipulates that with the permission of the people's procuratorate or the people's court, the defense lawyer may collect materials related to this case from the victim or his close relatives or witnesses provided by the victim. Lawyers need the permission of the procuratorate or the court to investigate and collect evidence from the victim and obtain the consent of the victim.

Legal objectivity:

Article 39 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. In criminal cases endangering national security and terrorist activities, defense lawyers should obtain permission from the investigation organ when meeting with the criminal suspect in custody during the investigation. The investigation organ shall notify the detention center of the above situation in advance. When a defense lawyer meets a criminal suspect or defendant in custody, he can understand the case and provide legal advice. From the date when the case is transferred for examination and prosecution, the relevant evidence may be verified with the criminal suspect or defendant. Defense lawyers are not monitored when meeting with criminal suspects and defendants. The provisions of the first, third and fourth paragraphs shall apply to the meetings and correspondence between defense lawyers and criminal suspects and defendants who are under surveillance.