If banks report credit card fraud and police report fraud, they can generally file a case and arrest the person within 7 days. Public security organs that encounter difficult cases may extend the review period to 30 days or 60 days. For more legal disputes, you can click on the "Today's Law Firm" applet for free consultation. 1. Will the case be filed after reporting fraud? If a victim reports fraud but believes that the police will not file a case for investigation that should be filed, and submits the case to the People's Procuratorate, the People's Procuratorate should request the public security agency to explain the reasons for not filing the case.