The Chief Censor has classified the Christchurch gunman's "crude booklet" as objectionable. it is considered Hate speech.
That means it's now an offence to possess or distribute it.
"It promotes, encourages and justifies acts of murder and terrorist violence against identified groups of people," David Shanks said on Saturday, in justifying the ban.

You are allowed to have a copy if you are researching the killers mind.

However the shooter was an advocate of socialism, and admirer of Communist China, which places him as a left wing extreme radical.

Is hate speech defined as
1. the promotion of murder of ideological opponents as Turkish President Recep Tayyip Erdogan who has played footage of the Christchurch mosque shootings, just hours after meeting New Zealand's Foreign Minister and assuring him of the safety of Australians and New Zealanders visiting Gallipoli.
Winston Peters chose not to confront the President over his use of footage from the Christchurch attacks at campaign rallies, or his remarks about sending Australians and New Zealanders home in coffins.

2. Those that merely express their opinion of Islam as a religion or State law, as Pauline Hansen or Frazer Anning; or as those that oppose like David Kosh or Waleed Aly.

What is Hate speech?

The ban applies to New Zealand. Censors gotta censor.

Meanwhile, it seems 'Mien Kampf", 'Das Kapital' etc are still available for sale....for the time being.

Censorship is always wrong..never right. It always fails to achieve its aims and simply forces those who are engaged in 'crimethink' to go underground where their views can fester.

"What is Hate speech?"

Whatever the left decides it is. Its definition will be different tomorrow as compared to today. It's a mechanism to shut down debate so as to allow only approved views to be aired.

As a Christian you should stand against all hate speech
You God was about love not hate
If we can not find ways to stop it it will be outlawed

Hate speech should be shunned and frowned upon, but not legally banned.
Otherwise you can never tell when your own (right or wrong) views will be criminalised.

Would government ban, for example, the controversial Jewish 'Aleinu' prayer?
http://www.jewishtreats.org/2009/08/controversial-prayer.html
http://en.wikipedia.org/wiki/Aleinu
http://jewishstandard.timesofisrael.com/talking-about-aleinu-3/

Reasonable people recognise hate speech without needing a definition. Unreasonable people like Greens leader di Natale thinks that hate speech is any comments or opinions he doesn't agree with.

Is the condemnation of others opinions or behaviour Hate? People like Frazer Anning and Pauline Hansen?

Is condemnation of the NZ shooter, identified as 28-year-old Australian citizen Brenton Harrison Tarrant, Hate speech?

Is condemning the Charlie Hebdo shooter and his ideology, for attacks that shook France in January 2015, taking the lives of 17 people, including 11 journalists; is that Hate speech?

Some social media have removed speeches and those that oppose the agenda of Islam from their platforms as they believe incite Hate. I believe by deleting such sends it underground to work their agenda secretly.

http://edition.cnn.com/2016/08/16/europe/anjem-choudary-hate-preacher-convicted/index.html

Should we be able to condemn the ideology that promotes violence and be able to give warning of its presence among us, or is this Hate speech?
Should the people of Nigeria that refuse to bow to Islam be allowed to protect themselves or is this a demonstration of Hate?

Is Hate only identified if its intent is to promote violence or murder?
Is Hate speech identified if it causes social or political division.
Is what is happening in the USA by the democrats against Trump supporters Hate?
Should we just ignore threats or speak up against them?