Friends are telemarketers and the company is suspected of fraud. All employees have been arrested and sent to the detention center. It's 30 days now?

After a criminal suspect is detained on suspicion of committing a crime, the investigation organ shall first file a case for investigation, and the longest detention period shall not exceed 37 days, including 7 days during the examination and arrest by the procuratorate. If your friend has not been released by this time, he may be arrested by the procuratorate. At this time, lawyers need to intervene, keep abreast of the case and take measures to ensure the legitimate rights and interests of your friends.