Just as the big stores have end of financial year sales, the government periodically has a national gun amnesty, so criminals and terrorists can hand over their hard-earnt guns. Ha! Australia is awash with illegal guns, in the hands of the underworld, and it is just plain stupid to think that they would surrender anything:
http://www.theage.com.au/victoria/government-toughens-gun-laws-in-response-to-shootings-and-gangs-arms-race-20151027-gkk18x.html
http://www.theage.com.au/victoria/as-many-as-600000-illegal-guns-in-australia-20161020-gs74ay.html
http://www.heraldsun.com.au/news/victoria/automatic-pistols-from-southeast-asia-spotted-on-local-black-market/news-story/a1c16504680a792cfaf0566aecaa0e3e
The claim that a national amnesty would do anything to stop terrorism is beyond ridiculous, as even mainstream sites have recognised http://theconversation.com/a-national-amnesty-will-not-rid-australia-of-violent-gun-crime-7956.
In fact, as I see it, all of this is just about the social control of ordinary citizens, with the hope of removing more guns from the ordinary people. It will make it easier for the white genocide waiting down the tracks, when TSHTF, and TEOTWAWKI (The end of the world as we know it).