In the 18 months I have been going to Shell Harbour, a security controlled field, I have only been asked for my ASIC once.
I did not have one at that stage. Nothing happended; no fine, no leave airside immediately, no report to Police etc etc.
The council officer that asked me knew it was a joke and simply told me to get one.
The main point is that ASIC is not a security system.
It is a 'pretend you are doing something about security' psuedo-action to justify a government departments existance.
It literally protects nobody.