Yes, according to the law, defense lawyers may, with the consent of the people's procuratorate, collect materials related to the case from witnesses or other relevant units and individuals from the date of examination and prosecution of the case, or 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.
legal ground
Article 45 of the Criminal Procedure Law
Provisions: "People's courts, people's procuratorates and public security organs have the right to collect and obtain evidence from relevant units and individuals. The relevant units and individuals shall truthfully provide evidence ".