Legal analysis: the law does not allow criminal suspects to view the case file, and the criminal case file is confidential. Institutions such as the Public Prosecution Law will not provide all materials according to the case file. In the investigation stage, lawyers can't consult the materials in the public security organs, only when they are transferred to the procuratorate.
Legal basis: Article 40 of the Criminal Procedure Law of People's Republic of China (PRC). From the date when the people's procuratorate examines and files 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.