Canberra woman's overdose marks ACT's first death linked to potent synthetic opioid

In July 2022, a 42-year-old woman was found dead in her Ainslie home in Canberra after her housemate called emergency services. A post-mortem identified a mixture of substances in her blood, most notably protonitazene, a new psychoactive synthetic opioid believed to be at least 100 times more potent than heroin. The ACT Coroner's Court, presided over by Ken Archer, ruled the death the first in the ACT linked to such a substance, attributing it to multiple drug toxicity with vomit aspiration as a contributing factor.

Police recovered drug-related paraphernalia, including uncapped syringes, naloxone nasal spray, fentanyl test strips, and several prescription medications, and later discovered her name in a notebook tied to a broader synthetic opioid distribution network. While the forensic pathologist could not determine if protonitazene alone caused the death, the coroner highlighted the growing national trend of deaths involving novel substances and the need for faster toxicology capabilities and coordinated public alerts.