Legal basis: Article 43 of the "Criminal Procedure Law of the People's Republic of China" With the consent of witnesses or other relevant units and individuals, defense lawyers may collect materials related to the case from them, and may submit them to the People's Procuratorate or The People's Court may apply to collect and obtain evidence, and may also apply to the People's Court to notify witnesses to appear in court to testify. 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 the witnesses provided by the victim, the defense lawyer may collect materials related to the case from them.