Noncompliance Kneecaps New Zealand's Gun Control Scheme

Once again, responding to a horrendous crime by inflicting knee-jerk, authoritarian restrictions on innocent people proves to be an ineffective means of convincing people to obey. Specifically, New Zealand's government—which also stepped up censorship and domestic surveillance after bloody attacks on two Christchurch mosques earlier this year—is running into stiff resistance to new gun rules from firearms owners who are slow to surrender now-prohibited weapons and will probably never turn them in.

Officials should have seen it coming.

"Police are anticipating a number of people with banned firearms in their...