A number of gun owners have voluntarily given up their semi-automatic rifles in the wake of the Christchurch terror attack.
Farmer and former Green Party candidate, John Hart, is one of them.
Hart told Mike Hosking it has taken Friday's tragedy for farmers to question why they have the rifles in the country at all.
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"I've had a lot of interesting feedback from farmers who feel exactly the same way. They maybe haven't gone to that step yet [getting rid of their guns] but they can see the need for some sort of restriction or ban."