What's the cordon at the murder scene?

This article refers to the warning and isolation facilities around the scene of murder, suicide or other major criminal cases.

The cordon erected at the murder scene aims at:

1. Keep the original appearance of the scene: prevent irrelevant personnel from entering or leaving, avoid the evidence on the scene from being moved, destroyed or disappeared, and provide an original and complete exploration environment for criminal technicians.

2. Control the flow of people: prevent onlookers from crossing the border, reduce the potential risk of secondary injuries, and ensure public safety.

3. Facilitate law enforcement: create favorable conditions for police investigation and evidence collection to ensure the smooth progress of investigation.

4. Remind the public: convey the seriousness of the incident, remind the public to abide by the law, respect the work of the police, and strengthen the awareness of prevention.