Coronial
NThospital

Inquest into the death of Mati Tamwoy

Deceased

Mati Tamwoy (also known as Michael Sagigi)

Demographics

66y, male

Date of death

2023-11-17

Finding date

2025-01-10

Cause of death

infectious complications of plasmablastic myeloma

AI-generated summary

Mati Tamwoy, a 66-year-old Aboriginal man, died in ICU from infectious complications of plasmablastic myeloma after 661 days on remand. He received excellent oncological care including chemotherapy and radiotherapy. However, the inquest identified significant systemic failures in correctional policy application: (1) he was inappropriately shackled to his hospital bed throughout multiple admissions despite having low security rating—policy required restraints only for high/medium security prisoners unless elevated risk justified it; (2) hospital journal maintenance was inadequate, creating uncertainty about restraint application and failing to document mandatory 60-minute checks; (3) no next of kin was notified following his death, contrary to directive requirements. While shackling did not contribute to his death, it was unnecessarily demeaning during terminal illness. The coroner emphasised confusion arose from contradictory SOPs conflicting with Directives, inadequate staff training, and correctional officers lacking medical expertise to assess medical discretion criteria.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.

Specialties

haematologyoncologycardiologyintensive careemergency medicinecorrectional health

Error types

systemcommunication

Drugs involved

chemotherapy agents

Clinical conditions

plasmablastic myelomamultiple myelomaischaemic heart diseasesevere right coronary artery diseasestage 2 chronic kidney diseasehypertensiondyslipidaemiahypercalcaemialatent tuberculosischemotherapy-induced immunosuppressionterminal illness

Procedures

coronary angiographyradiotherapychemotherapybiopsy

Contributing factors

  • plasmablastic myeloma transformation from multiple myeloma
  • aggressive chemotherapy in context of pre-existing ischemic heart disease
  • immunosuppression from chemotherapy and cancer
  • inappropriate application of restraints affecting emotional wellbeing
  • confusion between Directives and SOPs regarding restraint policy

Coroner's recommendations

  1. NT Department of Corrections should conduct thorough review of all Directives and Standard Operating Procedures concerning use of restraints on prisoners under medical escort and prisoner in-patients to ensure consistency and clarity, and to ensure correctional officer discretions are appropriate to their training and role. All correctional officers should receive training on new or updated Directives and SOPs.
  2. Directives and Standard Operating Procedures referable to maintenance of Hospital Journal or Hospital Bedsit Log should be reviewed and consolidated into one Directive or SOP. The procedure should include requirement that application of restraints be clearly identified in the journal/log. All correctional officers should receive training on the consolidated Directive or SOP.
  3. Relevant Directives and Standard Operating Procedures should be reviewed to ensure that up-to-date next of kin and/or emergency contact details are accurately recorded, and alternatively, that it is clearly recorded that a prisoner declines to provide such details and/or declines to consent to persons being contacted.
Full text

Source and disclaimer

This page reproduces or summarises information from publicly available findings published by Australian coroners' courts. Coronial is an independent educational resource and is not affiliated with, endorsed by, or acting on behalf of any coronial court or government body.

Content may be incomplete, reformatted, or summarised. Some material may have been redacted or restricted by court order or privacy requirements. Always refer to the original court publication for the authoritative record.

Copyright in original materials remains with the relevant government jurisdiction. AI-generated summaries and tagging are for educational purposes only, may contain inaccuracies, and must not be treated as legal documents. We welcome feedback for correction — report an inaccuracy here.