Does the public security hand over the evidence to the lawyer in criminal investigation mean that it is served to the parties?

1. The lawyer did not ask the public security department to consult and copy the file, but asked the procuratorial organ;

2. The file materials belong to state secrets and are not allowed to be shown to the client before the case is handled.

In criminal cases, lawyers handle cases independently, so handing them over to lawyers only represents lawyers and does not mean handing them over to the parties.