(1) Providing legal services and acting as an agent for complaints and accusations;
(two) to apply for bail or residential surveillance;
(3) Meeting with the criminal suspect;
(4) If the detention period expires and the arrest is not approved or the compulsory measures are changed, he may request the cancellation or change of the compulsory measures, and may obtain bail pending trial or be placed under residential surveillance;
(5) If the arrest period expires and he is transferred to the procuratorial organ or changes the compulsory measures, he may request the cancellation of the compulsory measures or change the compulsory measures, and may obtain bail pending trial or be placed under residential surveillance.
Legal basis: Article 38 of the Criminal Procedure Law of People's Republic of China (PRC), defense lawyers can provide legal assistance to criminal suspects during investigation; Acting as an agent for complaints and accusations; Apply for changing compulsory measures; Ask the investigation organ about the crimes and cases suspected by the criminal suspect, and put forward opinions.