Does hiring a lawyer need to be approved by the case handling unit during the investigation stage?

Whether hiring a lawyer during the investigation phase requires approval depends on whether the case itself involves state secrets. If state secrets are involved, the hiring of a lawyer requires approval; if state secrets are not involved, no approval is required.

In addition, lawyers in the investigation stage are not called "defenders" and only provide legal assistance. Only during the prosecution and trial stages are they called "defenders"

In addition, lawyers in the investigation stage are not called "defenders" and only provide legal aid.