Kaupapa Māori study exposes gaps in prison data and support for Māori

Photo: RNZ / Cole Eastham-Farrelly A major three-year study has found Māori are being undercounted in prisons by around six percent, masking the true scale of incarceration and its impact on whānau. The kaupapa Māori research project, TIAKI, examined the experiences of whānau entering and leaving prisons, combining national administrative data with interviews led by researchers with lived experience of incarceration. Researchers at University of Otago, Wellington - Ōtākou Whakaihu Waka, Pōneke have completed two studies within the project. The first found primary care services were not meeting the high health needs of Māori recently released from prison, with cost a major barrier. The second found Māori were undercounted by around 405 people in prison data because Corrections was not following national ethnicity recording protocols. Lead author Associate Professor Paula King (Te Aupōuri, Te Rarawa, Ngāpuhi, Ngāti Whātua, Waikato-Tainui, Ngāti Maniapoto) said the undercount affected resource allocation and government policy decisions. She also criticised the state for failing to monitor the health and wellbeing of Māori both in prison and after release. "What we expect is state accountability for state harms." Māori undercounted in prison King said the team was guided by kairangahau (researchers) with lived experience of prison to investigate ethnicity data, building on long-standing concerns about Māori undercounting across official datasets. Corrections' recording did not align with Stats NZ standards, she said. "People just aren't statistics - these are whānau with tamariki, with communities. If you're invisibilising Māori, you can't monitor Crown actions or inactions, or accurately assess the impact of policies," she told RNZ. Māori were overrepresented at every stage of the criminal justice system: 37 percent of people proceeded against by police, 45 percent of people convicted, and more than half of the prison population at 52 percent - despite Māori making up only 17.8 percent of the population, according to Stats NZ data. In women's prisons, the proportion rose to 61-63 percent, King said, and would be even higher when undercounting was considered. Photo: RNZ / Blessen Tom King said the undercount meant governments have underestimated how legislation affected Māori, including recent changes such as the Sentencing Reinstating Three Strikes Amendment Act 2025. "The government's got a directive to put more people in prison and for longer... the numbers are increasing." A Corrections spokesperson told RNZ ethnicity data was based on what prisoners self-report at reception, and people were encouraged to list multiple ethnicities, ranking them by preference. "Corrections has proactively released data on the prison population, including breakdowns by lead offence, age and ethnicity dating back to 2009. Given how we present this on our website, for ease of understanding we have typically reported on what prisoners have self-reported as their primary ethnicity." The spokesperson said Corrections was always seeking to improve its collection and proactive reporting of data, and would begin publishing more detailed tables that reflected multiple ethnicities from early next year. Data provided to RNZ shows that as at 30 November, 2025, Māori made up 52.3 percent of prisoners using primary ethnicity, and 56 percent when all reported ethnicities were counted. "Both measures demonstrate Māori are overrepresented in the prison population," the spokesperson said. They said Corrections was committed to improving outcomes with and for Māori, "addressing the overrepresentation of Māori in the corrections system, and reducing reoffending". Racialised inequities across the system King said the research reaffirmed long-standing inequities across policing, charging, prosecution, and sentencing. "It's longstanding - who the police choose to surveil, who gets charged, who is prosecuted, who gets longer sentences. These inequities are why the numbers of Māori in prison are so high." Those released from prison had three times the mortality rate of the general population, with the first month after release most dangerous. Early deaths were linked to chronic conditions, suicide, alcohol poisoning, injuries, and traumatic brain injury. Mortality was worse for wāhine Māori. The study found that only 76 percent of Māori released were enrolled with a Primary Health Organisation (PHO), leaving a quarter without access to subsidised care. Photo: RNZ / Cole Eastham-Farrelly King said rules excluding people in prison from PHO enrolment drive that gap. "Services aren't meeting the high health needs of people released from prison… Māori providers are picking up the slack but are under-resourced and under-funded." A Ministry of Health spokesperson told RNZ they acknowledged the findings showing Māori recently released from prison have poorer health outcomes. "We note the finding that around three...

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