The Institute of Environmental Science and Research (ESR) has changed its name to the New Zealand Institute for Public Health and Forensic Science (PHF Science) as of 1 July 2025. The website address is now www.phfscience.nz. Visitors are automatically redirected to the new address. Please check and update any links and bookmarks.

Te whakaiti tūkinotanga pūroi

Reducing drug harm

PHF Science uses science and innovation to contribute to national efforts to reduce drug harm. We deliver a wide range of specialist services to support informed decision making, this includes the analysis of drugs and medicines, and research and development activities.

DRUGS PHFS Teams Background

ABOUT

Addressing harm associated with the use of drugs is critical and complex, challenging organisations and communities across New Zealand. Our experts apply world-leading science and independent advice, working closely with health and community partners to support public safety, and empower informed decision-making to reduce drug-related harm.

EXPERTISE

Expertise

PHF Science host a wide range of expertise to provide analysis of drugs and associated samples for evidential and intelligence purposes. We work with New Zealand Police, coroners and pathologists to analyse biological specimens such as blood, urine, liver and stomach contents to determine the involvement of drugs or poisons in deaths or criminal investigations. We also work with New Zealand Police and Customs to provide analysis of drug powders, tablets, plant material and other related items. Additionally, PHF Science provides support to New Zealand Police for the analysis of clandestine laboratories. In the workplace, our accredited drug testing programme helps employers to meet safety obligations by detecting substances that may impair performance. We work with clients across sectors to test for alcohol, illicit drugs, and certain legal medications, helping to protect both individuals and organisations. Additionally, PHF Science works closely with the Alcohol and Other Drug Treatment Court to provide specialised analytical services to support drug rehabilitation of participants. PHF Science experts identify emerging substances and monitor drug trends through innovative programmes and services such as the National Drugs in Wastewater Programme, the Lumi™ Drug Scan designed in collaboration with New Zealand Police , and the Methamphetamine Calculator. As expert scientists, we provide independent advice and are an objective collaborator in national efforts to reduce drug harm in Aotearoa New Zealand

Expertise

National Drugs in Wastewater Programme

PHF Science scientists harness the power of wastewater to understand drug usage trends in Aotearoa New Zealand. To date, wastewater testing has been used to measure consumption of illicit drugs including methamphetamine, MDMA, cocaine, heroin and fentanyl. Insights from the National Drugs in Wastewater Programme are published each quarter on the New Zealand Police website

Forensic toxicology

Our forensic laboratories are accredited by the ANSI National Accreditation Board (ANAB), in the field of forensic science testing, to the international standard of ISO/IEC 17025. ANAB provides accreditation services to public and private sector organisations and is a subsidiary of the American National Standards Institute (ANSI).

Our Forensic Toxicology team works closely with New Zealand Police, coroners and pathologists to undertake analyses related to their investigations. When a death or alleged criminal act has occurred, our scientists analyse biological specimens such as blood, urine, liver and stomach contents, to determine the potential involvement of drugs, medicines and/or poisons. 

PHF Science also analyses blood samples taken from drivers suspected of driving while impaired by drugs and alcohol and can provide an estimate of a blood alcohol concentration at the time of a specific incident. 

Forensic drug chemistry

Our Forensic Drug Chemistry team provides evidential drug analysis for New Zealand Police and Customs. This includes identification of controlled drugs and medicines, and purity analyses of selected substances. As experts in drugs, the team receives a range of sample types suspected of containing controlled substances. The Drug Chemistry team also offers intelligence to the National Drug Intelligence Bureau.

Other workstreams for the Forensic Drug Chemistry team include the analysis of hemp to ensure plant material is meeting the legislative requirements for THC content and operation of a screening laboratory with the New Zealand Customs Service. The Drug Chemistry team also supports licenced Drug Checking Services, a world first in Aotearoa.

Workplace drug testing

PHF Science's workplace drug testing service detects certain drugs in urine samples. Our testing may indicate when someone’s ability to carry out their duties safely is compromised, presenting a danger not only to the individual but also potentially to work colleagues and the community. 

Having a comprehensive workplace drug testing programme helps employers meet statutory obligations in terms of taking practicable steps to ensure the safety of employees while at work – and protecting the reputation of businesses.

Our procedures are accredited by International Accreditation New Zealand to AS/NZS 4308:2008 ‘Procedures for specimen collection and the detection and quantitation of drugs of abuse in urine’. We can work with clients from any sector or organisation to test for drugs that impair performance including alcohol, illicit drugs and certain legal drugs. You can find out more by contacting us here.

Lumi Drug Scan Device

Co-developed by PHF Science and New Zealand Police, Lumiâ„¢ Drug Scan is a cutting-edge service that combines the power of a handheld near-infrared device and machine learning models to detect if a sample contains cocaine, MDMA or methamphetamine. The results are displayed in the Lumiâ„¢ Analysis app on the law enforcement officer’s mobile phone within seconds, having been compared against thousands of previously scanned samples by PHF Science and stored securely in the cloud. The results are also compiled in the Lumiâ„¢ Analytics Dashboard which shows regional drug-use trends. More information on the Lumi Drug Scan Device can be found here.

Methamphetamine Calculator

PHF Science has developed a Methamphetamine Calculator to help interpret the methamphetamine readings supplied by methamphetamine testing companies. It helps give some perspective to the levels of contamination being observed and the potential cause based on current research. Find out more about PHF Science's Methamphetamine Calculator.  

Clandestine laboratories

PHF Science also has a specialist Clandestine Laboratories team, working closely with New Zealand Police to provide expertise on drug manufacture. The highly trained chemists in this team are equipped to dismantle methamphetamine laboratories and provide forensic sampling and analysis services.

DRUG CHECKING SERVICES

Drug checking services

PHF Science experts and partners around the country support drug checking and other drug harm reduction technologies and initiatives. PHF Science is one of five drug checking providers licenced by the Ministry of Health. Through this important anonymous service, PHF Science helps keep people who choose to use substances safer by making information available to them about what's actually in the substances they’re consuming. As part of this PHF Science experts work closely with partners in the health system and community sector.

Find out more about our drug checking services

NEWS AND PUBLICATIONS

MEET THE TEAM