The investigation time of telecom fraud cases can be that the period of investigation and detention after the criminal suspect is arrested shall not exceed two months. If the case is complicated and cannot be concluded at the expiration of the time limit, it may be extended for one month with the approval of the people's procuratorate at the next higher level. Under special circumstances, it can be extended for two months.
Legal objectivity:
Article 156 of the Criminal Procedure Law stipulates that the detention review period after the arrest of a criminal suspect shall not exceed two months. If the case is complicated and cannot be concluded at the expiration of the time limit, it may be extended for one month with the approval of the people's procuratorate at the next higher level. Article 158 If the investigation of the following cases cannot be concluded within the time limit stipulated in Article 156 of this Law, it may be extended for two months with the approval or decision of the people's procuratorate of a province, autonomous region or municipality directly under the Central Government: (1) major and complicated cases in remote areas with very inconvenient transportation; (2) Major criminal group cases; (3) Major and complicated cases of escaping crime; (four) major and complex cases involving a wide range and difficult to obtain evidence.