Residues in fingerprints hold clues to their age

ScienceDaily
Jan 22, 2020, 1:49 pm213 pts
Police have long relied on the unique whorls, loops or arches encoded in fingerprints to identify suspects. However, they have no way to tell how long ago those prints were left behind -- information that could be crucial to a case. A preliminary new study suggests that could change. Researchers report that…

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