In this case, because the case is still in the investigation stage, according to the provisions of the Criminal Procedure Law, the criminal suspect can hire a lawyer to provide legal advice, represent the complaint and accusation from the date when compulsory measures are taken. However, because the case may involve state secrets, the criminal suspect's employment of a lawyer must also be approved by the state security department. If approved, the entrusted lawyer has the right to know the charges charged by the criminal suspect from the state security department, meet the criminal suspect and learn the case from the criminal suspect. I hope my answer can help you. If in doubt, please consult further.