According to the provisions of Article 117 of China's Criminal Procedure Law, a criminal suspect who does not need to be arrested or detained may be summoned to a designated place or residence or unit for interrogation, but the certificate of the people's procuratorate or the public security organ shall be produced.
The purpose of summoning is to ensure that criminal proceedings are carried out in a planned way and cases are handled in time.
Therefore, correctly judge the reasons for being summoned, honestly answer questions, cooperate with the investigation, and hire a lawyer when necessary.