1. A group aware tracking method comprising: recording an association in a table in a computing system between a plurality of individuals within a geographically bounded zone and at least one target object within the geographically bounded zone; sensing an individual from amongst the individuals exiting the geographically bounded zone; further sensing a target object exiting the geographically bounded zone; comparing the sensed individual with the further sensed target object to determine whether or not an association exists in the table; and, triggering an alarm when an association is determined not to exist in the table between the sensed individual and the further sensed target object.