Brenton Tarrant, the Australian white supremacist who murdered 51 Muslim worshippers at two mosques in Christchurch in 2019, has been prevented from appealing against his guilty pleas. One of New Zealand's highest courts declared his bid as "utterly devoid of merit."
Court Rejects Mental Health Claims
Tarrant, responsible for the country's deadliest mass shooting, had asked the Court of Appeal in February to allow him to challenge his guilty pleas. He argued that harsh prison conditions had negatively impacted his mental health, compelling him to admit to the crimes. However, in a decision released on Thursday, the court stated it did not accept Tarrant's evidence regarding his mental state, which contradicted detailed observations from prison authorities, mental health professionals, and trial lawyers.
The court noted: "He endeavoured to mislead us about his state of mind in a weak attempt to advance an appeal in circumstances where all other evidence demonstrated that he made an informed and totally rational decision to plead guilty." The judges further asserted that Tarrant was not coerced or pressured in any way to plead guilty. "The evidence overwhelmingly demonstrates that he was not suffering any significant psychological impacts as a result of his prison conditions at the time he pleaded guilty," the ruling added.
Delay and Lack of Merit
The court also highlighted that Tarrant failed to adequately explain the delay in filing his notice of appeal, despite having access to lawyers. Concluding, the court stated: "The court concludes that Mr Tarrant's proposed appeal is utterly devoid of merit."
Background of the Case
Tarrant pleaded guilty in March 2020 to 51 counts of murder, 40 counts of attempted murder, and a terrorism charge, after initially indicating he would defend the charges. In August 2020, he became the first person in New Zealand to receive a life sentence without the possibility of parole. However, in 2022, he filed an appeal against both his convictions and sentence. The Court of Appeal first had to determine whether the appeal could proceed, given it was filed outside the legislated time frame.
Hearing Details
During a week-long hearing starting on 9 February, Tarrant told a panel of three judges that his mental health deteriorated due to solitary confinement, limited reading material, and minimal contact with other prisoners. He claimed he suffered from "nervous exhaustion" by the time he entered his guilty pleas, feeling there was "little else I could do" just months before his trial was due to begin. Tarrant, a self-declared white supremacist, said he had masked his mental illness, partly driven by the "political movement I'm a part of," and argued that his late application was due to lack of access to necessary information.
However, Tarrant's former lawyers, psychologists, and prison staff gave evidence challenging his claims of mental health distress and harsh prison conditions. Experts had previously ruled Tarrant was fit to enter pleas. Crown lawyer Barnaby Hawes told the court that Tarrant was "an unreliable witness and his narrative should be treated with caution." Hawes further noted that evidence of his guilt, including livestreaming the attacks, was so overwhelming that a guilty verdict would be assured if the case went to trial.
Aftermath of the Attack
Tarrant moved to New Zealand in 2017, planning a white supremacist attack. He spent months planning the mass shooting, conducting reconnaissance at the mosques, distributing a manifesto expressing his racist views, and livestreaming part of the assault on Facebook. Following the attack, then-Prime Minister Jacinda Ardern's government banned military-style semi-automatic rifles and established a firearms registry. An inquiry into the attacks, the largest coronial investigation in New Zealand's history, is still ongoing. In October 2025, the High Court left the door open for Tarrant to be called as a witness, despite objections from survivors and families of the victims.
