If you are a policeman handling a case, what investigation measures should you take after arriving at the scene?

2, confirm the victim's situation and basic information and notify the family.

3. Visit the neighbors and ask the witnesses at the scene to understand the situation (simply exclude Wang and others)

4. Understand the characteristics of the suspect and report the vehicle information to the command center, and notify all intersections to set up a check card (suspect vehicle A 1234, physical characteristics of the suspect, blood on his coat and possible trauma).

5. If there is monitoring, take photos and identify them to prepare for mass sending.

6. If the suspect is confirmed, immediately find out the situation and arrest him.

7. Technical departments and forensic doctors shall conduct on-site investigation and evidence fixation.