The Illicit Drug Reporting System (IDRS) is an ongoing illicit drug monitoring system which has been conducted in all states and territories of Australia since 2000, and forms part of .
This year, we have provided a suite of products with the most up-to-date findings from interviews conducted annually from 2000-2018 with a cross-sectional sentinel group of people who regularly inject drugs recruited from all capital cities of Australia.
Results are not representative of all consumers or drug use in the general population and should be interpreted alongside findings from other data sources for a more complete profile of emerging trends in illicit drug use in Australia.
Latest release date
Use of the data
Please note that any presentation of these data should include acknowledgment of Drug Trends at the National Drug and Alcohol Research Centre, University of New South Wales.
Citation: Fetherston, J., Grigg, J. & Lenton, S. (2019). Western Australian Drug Trends 2018: Key findings from the Illicit Drug Reporting System (IDRS) Interviews. Sydney, National Drug and Alcohol Research Centre, UNSW Australia.
Drug Trends is supported by the Australian Government under the Drug and Alcohol Program.
Please contact the research team at with any queries; to request additional analyses using these data; or to discuss the possibility of including items in future IDRS interviews.