Why guard sometime sleeping while they are on duty: may be related to how the management making decision

Analyse this story ( one example of story).

The discussion on the safety and security of laboratory equipments and staff or students working in the lab.
After long discussion on the related cases or accidents in the laboratories, the discussion focused on the how to monitor the activities in the laboratories so that the laboratories are safe to work, researchers safety, all users follow the procedures, all equipments are in good order, no missing equipments and avoid death and fire accident. The suggestion usually employ the security staff and implement the security systems such as register names while researchers in the laboratory, do not lock the laboratory where someone is working, check all laboratories every half an hour or every one hour with evidence. After another long discussion on the cases on human attitude, the final decision by the management is only one door will be opened (main door), every body must write name in log book every hour at the front door or gate, provide a comfortable space for the security to sit at the main door (be there).

All researchers must understand the procedures, safety and their belonging related to their research. They must be responsible to all related to their research and take care of their self. If this is happen, we do not need the security. Then we do not have problems of they are sleeping or missing while they are working or guarding the properties.