"Three publics (industry) and one major" (public security, public health, industry and information and big data center) coordinated and linked to strengthen the flow of investigation and traceability, so as to achieve the preliminary investigation of the basic situation and complete the flow of investigation report within 24 hours.

"Three public (work) a large" (public security, public health, industrial letter and big data center) synergistic linkage, strengthen the flow of investigation traceability, to achieve "2 + 4 + 24" (that is, flow of investigation team arrived at the scene within two hours, four hours to complete the flow of investigation of the core information, the preliminary investigation of the basic situation within 24 hours and complete the flow of investigation report. Within 24 hours, the preliminary investigation of the basic situation and complete the flow report).