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The use of drug checking legislation to facilitate illicit drug consumption research: psychedelic microdosing as a case example

Estelle Miller, David B Menkes, Suresh Muthukumaraswamy, Geoff Noller, Rhys Ponton

Drugs, Habits and Social Policy May 27, 2026 DOI: 10.1108/dhs-10-2025-0046 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case study Case report Peer reviewed
Population People who microdose (PWM) in New Zealand
Topics Cannabis Microdosing
Keywords Legislation Microdose Context archaeology Illicit drug Harm reduction Controlled substance Internet privacy Computer security Risk analysis engineering Public relations Poison control Legislature Environmental health
Key findings Drug checking legislation enabled research involving people who microdose and facilitated the provision of harm reduction information.

Abstract

Purpose: Current laws prohibiting access to illicit drugs contribute to drug harms as manufacturers and distributors of illicit substances have variable influence over drug supply and quality. Legislation introduced in New Zealand (NZ) in 2021 aimed to address such harm by enabling licenced drug checking providers to directly analyse samples from consumers. This paper aims to detail the use of drug checking legislation for research purposes, and the licence aquisition process for the first licence of this kind. Design/methodology/approach Samples purported to be psychedelic drugs were analysed using this licence in the context of “microdosing”. Analysis of illicitly sourced substances used by people who microdose (PWM) addresses a gap in the literature; no research to date has collected and analysed samples to determine the extent to which drug content differs from consumer expectations. Obtaining a drug checking licence was required to legally collect microdose samples from participants.

Findings: Acquisition of the licence was a lengthy process. It is hoped that successful legislation in this instance will pave the way forward for future research using drug checking. The approval of the licence allowed participants to provide samples of illicitly sourced microdosing substances for analysis. Drug checking legislation enabled drug use research involving PWM and facilitated the provision of harm reduction information for this population. Originality/value This study demonstrates the usefulness of drug checking legislation in research as a means to inform policy, improve safety and support evidence-based best practice for both researchers and people who use drugs.

Comparable studies

Other case reports and case series on microdosing, most cited first.

Study Year Design Participants
Microdosing psilocybin for chronic pain: a case series Individuals with chronic neuropathic pain 2022 Case series n = 3
Microdosing of Psychoactive Substances in Business Practice Business managers and creative professionals 2021 Case study
Treatment of neuropathic pain with repeated low-dose MDMA: a case report. 64-year-old male with neuropathic pain after chemotherapy and traumatic life experiences 2025 Case study n = 1
Psycholytic dosing or 'microdosing' of Amanita muscaria (red fly agaric) mushrooms—A retrospective case study A woman in her early thirties with depression, anxiety, and sleep disorders from... 2023 Case study n = 1
Clinical improvement following an integrative iboga microdosing protocol in post-concussive and hypoxic brain injury syndromes: a case series Three individuals with persistent neurologic symptoms after traumatic brain injury or... 2026 Case series n = 3

Citations in the library

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