How do large shopping malls such as Walmart trace thieves’ past thefts in depth?

Brother, I also own a supermarket. Generally, we have dedicated personnel who look inside the mall every day. If there are suspicious objects, we will notify other personnel to help. Generally, we will use different faces in many corners. Let’s observe these people, and everyone is shopping like a customer. Some children don’t even know that we are looking at them when we walk next to them. Moreover, generally thieves pay more attention to the camera, but after a long time, In summary, we found that taking pictures is meaningless. Thieves will avoid taking pictures that are not full of people. So we use reflectors more to observe, and after we catch them, we will convince them first. In many cases, it is necessary. When we encounter some unusual characters, we will use alternative methods, but make sure you are not injured. After that, we will take the ID card and detain it for someone you know to pick it up. Generally speaking, if you don’t know the person, you will call 110 at this time. , maybe he has been caught many times, so in the end you just tell him, someone else and your people are coming, so we won’t make things difficult for you this time. Usually after he is let go, someone will follow him out to watch him for a while. Do you know if there are any accomplices? In short, if you tell some thieves that they will be done with it once, they will not come back. If we encounter thieves who always come but can't be caught, we usually call him to the office and tell him that it is not easy for his brothers, so we can stop him later. Now it depends on your judgment. Generally, if you give him a step up, he will choose a good one and do it for himself.