Do you know how many unsuitable people have had their firearms license restored? I don't, but I bet it has been an issue - for this law to have been enacted.
Seeing that judges have let dangerous people out of prison - as previously linked in this thread - it wouldn't surprise me to learn that dangerous people have had firearms licenses restored in the past.
The firearms registry, run by the NSW Police Force, can revoke a licence if the holder is found to no longer be a "fit and proper person" — an ongoing test which involves checks on character, honesty, lawfulness, mental health, and history of domestic violence or other concerning police interactions.
Also ....
when people had their firearms licences renewed — which will now be every two years following the bill's passage — it included additional checks to ensure that people's mental health is not an adverse factor or one that would negatively impact public safety.
NSW parliament has passed new firearms legislation in the wake of the Bondi Beach terror attack.
www.sbs.com.au