1, the police station has to call to cooperate with the investigation, because it is the duty of citizens to cooperate with the public security organs, that is, the public security organs have the right to let citizens cooperate with the investigation, and citizens have the obligation to cooperate with the public security organs.
2. According to Article 92 of the Criminal Procedure Law of People's Republic of China (PRC), a criminal suspect who does not need to be arrested may be interrogated at a designated place in the city or county where the criminal suspect is located or at his residence, but the certificate of the people's procuratorate or the public security organ shall be produced. The maximum period of summons shall not exceed 12 hours. The criminal suspect shall not be detained in disguised form by means of continuous summons or compulsory summons.