New Hair Analysis Tracks Down Criminals

No alibi for killers, no unknown origins for the victims: a new crime-fighting tool analyze human hair for revealing location, helping police to follow the past movements of criminal suspects or murder victims. "You are what you eat and drink - and that is recorded in your hair," said lead re... [ read more >> ]

These maps show average hydrogen (top) and oxygen (bottom) isotope levels in human hair across US. The ratios of hydrogen-2 to hydrogen-1 are highest in red areas, and lowest in the darker green areas. The same for oxygen-18 to oxygen-16.

Image comment: These maps show average hydrogen (top) and oxygen (bottom) isotope levels in human hair across US. The ratios of hydrogen-2 to hydrogen-1 are highest in red areas, and lowest in the darker green areas. The same for oxygen-18 to oxygen-16.
Image credits: University of Utah

These maps show average hydrogen (top) and oxygen (bottom) isotope levels in human hair across US. The ratios of hydrogen-2 to hydrogen-1 are highest in red areas, and lowest in the darker green areas. The same for oxygen-18 to oxygen-16.
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