I think that what Raphael says is true. However, the CCTVs are not usually placed in a spot that everyone can see, but in a spot that no one can see. However, the CCTVs can see everything that you are doing. Even if the robber robs an old women in a blind spot that the CCTV cannot see, surely there are much more than 1 CCTVs around. If there was a bank or anywhere that held money, surely it would be monitored much much more than a shopping centre. The bank would not want to lose money so easily. Furthermore, the bank contains alot of money from people around the world. They would want to protect their money safely.