Christine A. Harvey

A Quantitative Analysis of Street‐Level Drugs Seized in New South Wales, Australia: Purity, Dose and Adulterants

Drug and Alcohol Review September 29, 2026 Janette L. Smith, Christine A. Harvey, NSW Police Force et al.

INTRODUCTION: The Combined Surveillance and Monitoring of Seized Samples (CoSMoSS) program is a joint harm reduction initiative between NSW Health and NSW Police Force. Here, we examine the contents and purity of a sample of seized suspected target drugs (cocaine, heroin, methamphetamine and 3,4-methylenedioxymethamphetamine 'MDMA'). METHODS: Between January 2021 and March 2025, 3378 street...