Footage of the horrifying massacre, in which 50 people were killed, was live-streamed and quickly spread around the internet in the hours after the attack.
Authorities warned people against sharing the video, which they declared illegal in New Zealand, as a wave of revulsion rippled throughout the country.
Six people appeared in court on Monday charged with possessing or spreading the footage of the March 15 atrocity.
The names of five of the six cannot be published because of a court order.
"It would be wise to let justice take its course without any outside interference, by anyone either supporting those who have come before the court, or anyone wishing to exact some form of justice on them before they come before court," O'Driscoll said.
One of the accused, an 18-year-old, was also charged with possessing a photo of one of the mosques with the caption "target acquired".
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