Security guards may come across various people and be exposed to lots of information when performing duty. As such, security guards are required to have sharp insight. According to Shanghai Security Company, a security guard with great insight can find suspected people or matters timely so as to take necessary measures decidedly to prevent and validly control vicious incident with staff members. 

A security guard from Shanghai Security Company found something wrong with two hefty men who approached him slowly when executing tasks, but they two immediately ran away after he inquired. Hence, the security guard hastened to contact with staff members and captured them only to find that they were tied with electric wire stolen at the community just now. 

Particularity related to security jobs requires security guards to adept in memory. Security guards must remember those whom they contact with, so that they can search suspect in their mind through their own memories when theft arises in their working areas. Some cases depend on security guards for providing accident time and place via their memories, so a great memory is indispensable.