Deputy Prime Minister Peters says "you will be handing them back" after gangs publicly refuse to hand over guns.
https://www.tvnz.co.nz/one-news/new-zealand/you-handing-them-back-winston-peters-tells-gang-members-planning-keep-guns-in-wake-christchurch-terrorist-attack?variant=tb_v_5
A former Russian Soldier died in an apparent suicide during a standoff with police after members of the public notified police about his gun collection.
https://www.stuff.co.nz/national/crime/111596809/exrussian-soldier-dies-of-suspected-suicide-after-police-standoff-in-christchurch
A virtue signaling Green Party candidate was the first person to hand in his guns. He is now receiving 'harassment' from NRA members.
https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=12216973
A website set up for handling in guns crashed after receiving 100s of fake submissions.
https://www.tvnz.co.nz/one-news/new-zealand/police-probe-fake-online-submissions-handing-in-guns?variant=tb_v_1
Increase in gun sales before ban.
https://www.newsroom.co.nz/2019/03/24/491934/panic-buying-of-guns-ahead-of-ban
Police failed to act on a complaint about the Milton gun club where Tarrant trained.
https://www.tvnz.co.nz/one-news/new-zealand/hunter-says-he-warned-police-dunedin-gun-club-christchurch-shooter?variant=tb_v_5