What do security personnel look out for at various city buildings?

Have you wondered what security personnel look for during screening in public buildings?

Nearly every major building in Nairobi has put in place elaborate security systems to screen all persons entering the facility. From government buildings to shopping malls, hotels, office blocks, hospitals, airports, places of worship - all have some sort of security control systems. The impression one gets is that we are a highly security conscious nation, and particularly in the capital.