Lee Jia Ying (22) Reply to Jia Yan

I agree that investing in digital surveillance can be good, but even with all those high end cameras, the guards watching the screen might be complacent and not pay attention to the screen during his duty hours. for example, a robbery might be going on, and he still does not notice because he has his attention on another object. so we also need to consider the possibilities of human error which might screw up the whole thing even with high end cameras.