1. The public security organ shall, within its jurisdiction, timely review the materials of reporting, accusing, reporting and surrendering, and if it thinks that there are criminal facts that need to be investigated for criminal responsibility, it shall file a case;
2. Article 115 of the Criminal Procedure Law: A public security organ shall investigate a criminal case that has been put on file, and collect and obtain evidence of the criminal suspect's guilt or innocence, whether the crime is light or heavy. Active criminals or major suspects may be detained in advance according to law, and criminal suspects who meet the conditions for arrest shall be arrested according to law;
3. For the crime of fraud, the public security organ can take compulsory measures according to law after filing the case, and arrest the criminal suspect who meets the arrest conditions according to law.
When filing a fraud case, three conditions must be met:
1, fraud facts;
2. If the amount of fraud reaches 3,000 yuan, criminal responsibility shall be investigated according to law;
3. Specifically under the jurisdiction of the public security organs.
To sum up, when reporting to the police station, the public security organs will generally file a case for fraud. After filing a case, the public security organ will make a confession to the policeman to understand the situation, and then collect evidence and investigate.
Legal basis:
Article 1 12 of the criminal procedure law.
The people's court, the people's procuratorate or the public security organ shall, in accordance with the jurisdiction, timely review the materials of reporting, accusing, reporting and surrendering, and if they think that there are criminal facts that need to be investigated for criminal responsibility, they shall file a case; If it is considered that there are no criminal facts, or the criminal facts are obviously minor, and it is not necessary to pursue criminal responsibility, the case shall not be filed, and the complainant shall be informed of the reasons for not filing the case. If the complainant refuses to accept it, he may apply for reconsideration.