Looks like an inside job. Perhaps time for secret cameras by some of the residents, to look at the activities of the Security Employees.
DXB is MUCH safer than many countries in the world, yes crime does happen, and there is a LOT of denial when it does. But ya only have to look at some of the places we fly to and layover in. NYC for example, i love the place, but you certainly watch your back in downtown Brooklyn.
EGGW