Seven years after the Christchurch mosque massacre shocked the world, a growing number of victims’ families, researchers and community leaders say Australia has yet to fully confront the role it played in the events leading to the attack.

On 15 March 2019, a gunman killed 51 Muslim worshippers at two mosques in Christchurch, New Zealand, in the deadliest mass shooting in the country’s history.

The attacker, an Australian national, had spent years travelling and consuming extremist material before carrying out the assault, broadcasting the violence online and distributing a manifesto steeped in white supremacist ideology.

In the immediate aftermath, New Zealand launched one of the most comprehensive investigations in its history.

Within days, the government established a Royal Commission of Inquiry to examine the actions of security agencies, the attacker’s access to firearms and what steps might prevent similar acts of violence in the future.

The commission ultimately produced dozens of recommendations aimed at strengthening national security systems and addressing the broader environment in which extremist ideology can flourish.

Yet while New Zealand undertook an extensive examination of the attack and its aftermath, Australia has never conducted an equivalent national inquiry into how the perpetrator became radicalised or what role domestic networks and social conditions may have played.

Analysts and advocates say that gap has left unresolved questions about the social and ideological environment that shaped the attacker before he travelled overseas.

Community leaders argue that much of the hatred that influenced the massacre was cultivated long before the violence unfolded in New Zealand.

Some describe a persistent reluctance in Australia to examine the deeper roots of anti-Muslim hostility and the way extremist narratives spread through digital communities.

Legal cases and police investigations in recent years have demonstrated that the influence of the Christchurch attack continues to echo within extremist circles.

Authorities in Australia have arrested individuals accused of making threats against mosques and spreading propaganda inspired by the massacre, highlighting how the attack’s ideology still circulates online and among fringe groups.

Muslim organisations say these incidents reinforce the sense that the broader cultural reckoning many expected after 2019 never fully materialised.

Advocates argue that confronting Islamophobia and far-right extremism requires not only policing but also sustained political and social engagement, including education, monitoring of online networks and stronger protections for targeted communities.

Researchers studying violent extremism note that the Christchurch attack demonstrated how digital platforms can accelerate radicalisation, allowing individuals to immerse themselves in transnational extremist networks without formal membership of any group.

Experts say addressing that phenomenon requires coordinated responses across governments, technology companies and civil society.

For families of those killed and for Muslim communities across the region, the absence of a comprehensive national review in Australia continues to stand in contrast with the extensive inquiries undertaken in New Zealand.

Many say a deeper examination of the conditions that shaped the attacker would not only honour the victims but also help prevent similar tragedies.

As time passes, the attack remains both a symbol of the dangers posed by online extremism and a reminder that the consequences of ideological hatred can extend far beyond national borders.