Like spy movies, does the laser pointer really exist to ensure safety? Yes, there is a laser field. The most common part is wrong. The real safety laser field will be invisible, and there may be a tiny pinhole on the wall, otherwise the laser will be invisible. If you see the laser, there are enough particles to rupture the laser, causing the sensor to trip. Depends on the time window before the sensor trips. Mirroring skills are not an option either.
So you won't know where the laser pointer is to make diagrams for practice. Night vision may work according to the frequency of the laser. But this means that you can’t really cover the location, and you can’t do it in real time. Night vision will make the darkest security guard stand out. Therefore, most of the display methods that movies try to beat the laser are for visual effects. And there are few similarities with reality.