Background: Previous work has demonstrated that cannabis laws have had a disproportionate impact on Māori, the Indigenous people of Aotearoa New Zealand. In an attempt to address this bias, the New Zealand Government amended cannabis laws in 2019, providing police with the power to determine whether a health-centred approach would be more beneficial than a conviction. In the current study, we use population level data to assess whether this law change has ameliorated the bias in cannabis convictions for Māori.Methods: Data were drawn from the Integrated Data Infrastructure (IDI), a large government database hosted by Aotearoa New Zealand’s national statistics office. After constructing the population in the IDI, and filtering down to those who 1) were between 18 and 65, 2) were Māori or Pākehā and, 3) had any cannabis charges that proceeded to the courts, we had a sample of over 2,000 individuals.Results: Māori ethnicity was a significant predictor of the likelihood of receiving a cannabis conviction for Māori males, with a marginal effect for Māori females. Further, there was no reduction in the number of cannabis charges before vs. after the amendment to cannabis laws.Conclusion: The current study demonstrates that the 2019 amendment has not ameliorated the bias in cannabis convictions for Māori. Given this, the New Zealand Government must follow other countries around the world and move forward on cannabis law reform.