article 4 of the criminal procedure law
from the date when the people's procuratorate examines and prosecutes the case, the defense lawyer may consult, extract and copy the case file. Other defenders may also consult, extract and copy the above materials with the permission of the people's court or the people's procuratorate.
Article 41
Defenders have the right to apply to the people's procuratorate or the people's court for obtaining the evidence materials collected by the public security organs and the people's procuratorate to prove the innocence or light guilt of the criminal suspect or defendant during the investigation, examination and prosecution.