Documents tabled in the Senate following Senator Malcolm Roberts’s motion have revealed that the Department of Defence may have breached the Workplace Health and Safety Act in the lead-up to the fatal MRH‑90 Taipan helicopter crash in July 2023. The documents allege two major offences: reckless conduct and exposing workers to serious risk, citing known fatigue issues and concerns over the TopOwl 5.10 helmet-mounted sight display system. Despite these findings, Commonwealth prosecutors declined to charge Defence, prompting calls for transparency and accountability.