From the AG's website-
The ASIC scheme aims to reduce the risk of unlawful interference with aviation, not just terrorism.
The intent of the system has morphed into preventing a far lesser risk to human life. For the sake of a few crims that accessed the freight areas of the industry another layer of criminal checks have been added. A perusal of AAT files shows that having a criminal record directly related to the subject..
drug dealing and trafficking is no bar to holding an asic...so why the change to the posture?
Whilst the threat of terrorism would eventually wain....criminality will ALWAYS be with us.