https://www.techdirt.com/articles/20190325/14040941864/new-zealand-censors-declare-christchurch-shooting-footage-illegal-start-rounding-up-violators.shtml

Following the recent mass shooting in New Zealand, the county's government swiftly declared the live footage of the attack, along with the shooter's manifesto, "objectionable." This classification is more than a condemnation: it made both illegal to possess or distribute. Thanks to this response, New Zealand law enforcement is now rounding up and charging anyone who violates this post-tragedy decision to make newsworthy content the legal equivalent of child porn.

The first reported arrest occurred March 17th, two days after the shooter livestreamed his attack on local mosques.