As for the subpoena of the procuratorate after obtaining a guarantor pending trial, it is actually one of the investigative measures taken by the judicial organ.
 If the case is transferred by the procuratorate to the court for trial, it needs to be tried by the court, and obtaining a guarantor pending trial is a compulsory measure. It means that in criminal proceedings, the public security organ, the People's Procuratorate, the People's Court and other judicial organs will order criminal suspects and defendants who have not been arrested or who need to change coercive measures to prevent them from evading investigation, prosecution and trial to provide a guarantor or pay a certain amount of security deposit and issue a letter of guarantee, Make sure you can pass on and come. This is a compulsory means of not detaining them or temporarily releasing them from custody, which is executed by the public security organ. After a criminal suspect or defendant has obtained a guarantor pending trial, if there is evidence to prove the fact that they committed a crime, the court will still sentence them. Obtaining a guarantor pending trial is only one of the compulsory measures in criminal cases, which does not mean that the criminal suspect or defendant will be free after obtaining a guarantor pending trial.
 Legal basis
 Article 67 of the Criminal Procedure Law of the People's Republic of China, the people's courts, the people's procuratorates and the public security organs may obtain a guarantor pending trial for a criminal suspect or defendant under any of the following circumstances:
 （1） Those who may be sentenced to public surveillance, criminal detention or independent application of supplementary punishment;
 （2） It may be sentenced to fixed-term imprisonment or more, and the adoption of guarantor pending trial will not cause social danger;
 （3） A woman who suffers from a serious disease, cannot take care of herself, is pregnant or breast-feeding her own baby, and takes a guarantor pending trial, which will not cause social danger;
 （4） When the term of custody expires, the case has not been completed and it is necessary to obtain a guarantor pending trial.
 Obtaining a guarantor pending trial shall be executed by the public security organ.