NZ cabinet backs tighter gun laws New Zealand PM Jacinda Ardern has said she will announce detailed gun law reforms within days, after an attack on two mosques left 50 people dead. Ms Ardern said her cabinet had backed gun law changes "in principle". Australian Brenton Tarrant, 28, a self-described white supremacist, has been charged with murder. Police say the killer used military-style assault weapons modified to make them more deadly - which is not illegal under current legislation. New Zealands gun laws are far too lax. A change is gonna come.