Legal basis:
According to the Criminal Procedure Law of People's Republic of China (PRC)
Article 117 A criminal suspect who does not need to be arrested or detained may be summoned to a designated place in the city or county where the criminal suspect is located or to his residence for interrogation, but the certificate of the people's procuratorate or the public security organ shall be produced. A criminal suspect found at the scene may be summoned orally, but it shall be indicated in the interrogation record.