What do you mean by crime scene? What do you mean, crime scene?

2. The case field is the scene, also called the sales case field, which refers to the scene of the sales office.

3. For example, case sales, commonly known as sales staff, is the sales gentleman or lady of the sales office of newly-built commercial housing. The security personnel at the scene of the case are generally security personnel recruited by property companies or real estate companies, who are responsible for the security work of the residential area or property area.