Ontario coroner rules updated: mandatory tissue collection for genetic conditions, new 50-year retention, and family genetic testing requests

Plain-language summary · AI-assisted

Amendments taking effect in early 2027 make significant changes to how pathologists and coroners handle tissue samples when a genetic condition is believed to have contributed to a death. Pathologists and coroners will be required—not just permitted—to collect and retain tissue samples (including a new category, extracted DNA samples) when they believe a genetic condition contributed to the death. Retained tissue samples collected for future genetic testing, and extracted DNA samples, must now be kept for at least 50 years, a major extension from previous maximum periods of two years or less. Accommodation policies for post mortem examinations are broadened to cover conscientious beliefs in addition to religious beliefs. A new formal process allows close genetic relatives (parents, siblings, children) or their substitute decision-makers to request genetic testing of a deceased person's retained tissue samples to inform their own health care decisions, with the Chief Coroner or Chief Forensic Pathologist deciding whether to proceed and sharing results in writing. Personal representatives may request disposal of tissue samples collected for future genetic testing, but extracted DNA samples are excluded from burial or cremation handover rights.

Who this affects
pathologists performing post mortem examinations · coroners conducting death investigations · hospitals storing tissue samples · deceased persons' families and personal representatives · genetic relatives of deceased persons