A bruise (or contusion) represents a release of blood into the tissues, resulting from blunt force injury that does not cause a break in the skin. Estimation of the age of a bruise may be important to support or contradict testimony in matters of forensics. Physicians by visual inspection suggest that a bruise is either fresh or old based on the presence or absence of yellow color, which is highly inaccurate. We present here, the temporal progression of reflection spectrum collected from inflicted contusions in participants by ocean optics USB2000 spectrometer, which is absolutely noninvasive.

Keywords: Spectroscopy, Bruise, Forensics, noninvasive

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