For example, in Article 43 of the Criminal Procedure Law, defense lawyers may, with the consent of witnesses or other relevant units and individuals, collect materials related to the case, apply to the people's procuratorate or the people's court for collecting and obtaining evidence, or apply to the people's court for notifying witnesses to testify in court.
With the permission of the people's procuratorate or the people's court, and with the consent of the victim or his close relatives or witnesses provided by the victim, the defense lawyer may collect materials related to the case from them. Legal basis: Article 43 of the Criminal Procedure Law, with the consent of witnesses or other relevant units and individuals, defense lawyers may collect materials related to this case from them, apply to the people's procuratorate or the people's court to collect and obtain evidence, or apply to the people's court to notify witnesses to testify in court. With the permission of the people's procuratorate or the people's court, and with the consent of the victim or his close relatives or witnesses provided by the victim, the defense lawyer may collect materials related to the case from them.
Article 44 A defender or other person shall not help a criminal suspect or defendant to conceal, destroy, forge evidence or collude in confession, and shall not threaten or induce witnesses to commit perjury or engage in other acts that hinder judicial proceedings. Anyone who violates the provisions of the preceding paragraph shall be investigated for legal responsibility according to law. If a defender is suspected of committing a crime, it shall be handled by an investigation organ other than the investigation organ where the defender undertakes the case. If the defender is a lawyer, he shall promptly notify the law firm where he belongs or the lawyers association to which he belongs.