According to the paper, researchers at the Institute of Forensic Medicine systematically removed parts of organs from 1000 Norwegians between 2001 and spring this year, when the practice was brought to a halt.
According to Bjørn Magne Eggen, the Director of Forensic Sciences at the Norwegian Institute of Public Health, which took over the forensic operations in 2011, the tissue was needed to create a "normal control".
"The material is anonymised to compare the findings of any special investigations against a normal population," he told Norway's VG newspaper.
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VG revealed in May forensic experts at Institute had taken the brains and other organs of some 700 babies, often without the consent of the parents, in order to research Sudden Infant Death Syndrome, or Sids.