What can a lawyer do in criminal detention for 37 days?

Legal analysis: lawyers can find out what crimes the parties have committed, meet the criminal suspects and provide them with legal help. They have the right to appeal and accuse, apply for changing the compulsory measures against criminal suspects, and make suggestions to relevant departments.

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.