Received text message case number, suspect extended detention time

One month. According to the query on Hualv.com, after receiving the SMS case number, the suspect’s detention time was extended to one month. The period of investigation and detention for criminal cases shall not exceed two months. If the case is complex and cannot be concluded upon expiration of the period, it may be extended by one month with the approval of the People's Procuratorate at the next higher level.