Wastewater data shows Australia’s methamphetamine consumption has almost doubled in a decade

The Australian Criminal Intelligence Commission, after analysing samples collected from sixty‑four wastewater treatment facilities across the nation between August 2024 and August 2025, published an annual report on Wednesday evening that documented a near‑doubling of methamphetamine residues and a simultaneous record level of cocaine, thereby providing the first comprehensive, scientifically grounded snapshot of stimulant consumption trends that surpasses anecdotal police estimates and highlights the sheer scale of the challenge confronting public‑health authorities.

By employing advanced mass‑spectrometry techniques on influent water streams, the agency quantified drug metabolites and, after normalising the data to population equivalents, determined that methamphetamine consumption has risen by approximately 95 % compared with figures from ten years prior, while cocaine usage has climbed to its highest measured concentration, a trajectory that suggests that existing demand‑reduction strategies have either failed to keep pace with evolving user preferences or have been systematically undermined by insufficient coordination among law‑enforcement, health, and community agencies.

The timing of the report, coinciding with a parliamentary review of the national drug strategy, draws particular attention to the paradox that, despite substantial investment in surveillance infrastructure and periodic public‑awareness campaigns, the underlying drivers of stimulant use remain largely unaddressed, a circumstance that implicitly critiques the predominance of punitive approaches over evidence‑based treatment and harm‑reduction initiatives within the current policy framework.

In sum, the wastewater findings, by converting invisible chemical traces into a stark, quantitative narrative, expose a persistent institutional blind spot: the reliance on reactive enforcement without commensurate preventive health measures, thereby reinforcing the conclusion that without a paradigm shift toward integrated, data‑informed interventions, Australia is likely to witness continued escalation of stimulant consumption, a reality that the very data now lay bare for policymakers to acknowledge.

Published: April 30, 2026