According to Item (1) of Article 37 of the revised Criminal Procedure Law, defense lawyers can meet and correspond with criminal suspects and defendants in custody. Other defenders, with the permission of the people's courts and people's procuratorates, may also meet and correspond with criminal suspects and defendants in custody. Therefore, item A is correct.
According to Article 36 of the Criminal Procedure Law revised by 20 12, 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. Therefore, item B is correct.
According to Article 38 of the Criminal Procedure Law revised by 20 12, defense lawyers can consult, extract and copy the case files from the date when the people's procuratorate examines and prosecutes the case. Other defenders may also consult, extract and copy the above materials with the permission of the people's court or the people's procuratorate. Therefore, item C is correct.
According to Article 39 of the Criminal Procedure Law as amended by 20 12, defenders have the right to apply to the people's procuratorate and the people's court for retrieval if they think that the evidence materials collected by the public security organs and people's procuratorates to prove the innocence or light crimes of the criminal suspects and defendants have not been submitted. Therefore, item D is correct.