Inquiry into New Zealand's deadliest shooting opens with memorial to victims

A coroner's inquiry into New Zealand's 2019 mosque killings opened on Tuesday, would "seek to shine a light" on what happened and would consider making recommendations to reduce the chances of a similar event happening again.

Armed with high-capacity semi-automatic weapons, Brenton Tarrant, 32, killed 51 people and injured dozens when he opened fire in two Christchurch mosques on March 15, 2019.

Tarrant released a racist manifesto shortly before the attack and streamed the shootings live on Facebook. He was convicted on 51 charges of murder, 40 counts of attempted murder and one charge of committing a terrorist act and is serving a life sentence in prison without parole.

"I ask simply that we keep each of the 51 people whose lives have been lost, and that common goal at the centre of this hearing," Deputy Chief Coroner Brigitte Windley said as she opened the inquiry.

"This inquiry is not about establishing liability or negligence," she said. "I have no mandate to award compensation or to direct further proceedings."

Over the next six weeks, the inquiry will examine 10 issues including the response by emergency services and hospital staff, whether Tarrant had direct assistance from any other person and the cause of death for each of the deceased.

The inquiry is a legal process required by New Zealand law to examine unexpected deaths and receives input from medical examiners, police, first responders and other witnesses to the death.

The main courtroom was full and further space had been made available in a neighbouring courtroom for families to watch a livestream.

Before the first witness appeared, a video was played with photos and memories of all those who died. The start of the inquiry was then dedicated to the events on the day and how emergency services responded.