Eye in the sky (camera)

The eye in the sky is a term given to casino and other commercial security closed circuit cameras.

In casinos, they are positioned to monitor seats, tables, hallways, restaurants, and even elevators closely.

These cameras often help casino officials judge whether the person is card counting or past posting.

In case a crime or a cheat is detected after the fact, the casino employees can review the recorded tapes and find the culprit.

[1] These types of cameras are also found in retail stores as well to monitor customers and employees, such as Walmart or Target.