Since the people's court accepted the case, the defense lawyer can consult, extract and copy the materials of the alleged criminal facts in this case, and can meet and correspond with the defendant in custody. With the permission of the people's court, other defenders may also consult, extract and copy the above materials, and meet and correspond with the defendant in custody.
As can be seen from the above provisions, lawyers' marking, inquiry and interview do not need approval at the stage of procuratorate and court, but not lawyers.
In addition, in the investigation stage, only lawyers can be hired as defenders, and there are no restrictions on interviews. Non-lawyers cannot be defenders at this stage.
Another difference is that lawyers have the right to investigate and collect evidence, while non-lawyer defenders do not have this right.