News In Brief: Lipstick smudges reveal their identity
Spectroscopy allows forensics researchers to tell cosmetics apart
By Rachel Ehrenberg, 11:43 AM February 26, 2013
WASHINGTON — Discerning one lipstick from the next can be tough for consumers but it’s even harder for scientists. Now forensics researchers have found a quick method to tell apart individual lipsticks, no matter the color or brand. The approach could help investigators analyze evidence in cases in which a smear of lipstick on glass, paper or a piece of clothing becomes important.
Experts typically examine a lipstick’s dyes or its chemical or elemental composition. To distinguish closely r...
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