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Japan Police Agency Expands DNA Review to 239 Cases, Says Most Investigations Unaffected
The National Police Agency raised the total of flawed DNA analyses by a former Saga Prefectural Police employee from 130 to 239 after reviewing 643 tests. The agency said it cannot rule out negative effects on 37 investigations.
Jun 4, 4:35 AM·1m read1 source
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The National Police Agency said Thursday that a former Saga Prefectural Police forensic employee performed 239 improper DNA analyses, up from the 130 cases identified in an earlier internal probe. The agency released its report on a special inspection that examined 643 DNA tests connected to the former employee.
The report concluded that the agency cannot rule out the possibility that investigations were negatively affected in 37 of those cases, including instances where retesting was impossible.
National Police Agency Commissioner-General Yoshinobu Kusunoki spoke at a news conference in Tokyo on June 4, 2026, the same day the report was issued. jp reported the updated figures and the scope of the review.
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