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2026年4月28日Forensic-Genealogy Milestone: Ireland Approves First-Cousin DNA to Identify Century-Old Degraded Remains
In March 2026, the director of Forensic Science Ireland (FSI) formally recommended extending the national DNA identification programme to first cousins. On 28 April, the Irish cabinet approved amendments to the Institutional Burial Act 2022, clearing the legal path.
The technical enabler is SNP capture combined with next-generation sequencing: roughly 95,000 SNP positions per sample. Compared with traditional forensic markers, this dense SNP panel extends kinship identification on degraded bone from second-degree to third-degree relatives — making first-cousin matches workable.
The decision applies directly to the ODAIT project identifying unnamed remains from the Tuam Mother and Baby Home, where about 796 infants died between 1925 and 1961. For cold-case and mass-grave identification worldwide, it is a landmark: century-old degraded remains are, for the first time at national level, brought into a formal identification workflow that uses cousin DNA as the lead.
Source: Forensic Science Ireland / Irish government (compiled coverage). First-cousin DNA breakthrough, 2026-04-28.
