• Bonnie Mackenzie and Carole Jenny.
• From the Departments of *Emergency Medicine and †Pediatrics, Alpert Medical School of Brown University, Providence, RI.
• Pediatr Emerg Care. 2014 Mar 1;30(3):207-10.

AbstractAlternate light sources are devices that produce visible and invisible light at specific wavelengths to allow for enhanced visualization of fluorescent substances. These devices (which include Wood's lamp and blue light) are often used in forensics for evidence collection and can be quite useful to physicians in the medical evaluation of suspected physical or sexual assault. An understanding of the proper applications, as well as the limitations, of each alternate light source is imperative to correctly performing and interpreting medical evaluations in the emergency department. This review discusses the evidence from prospective trials in children and adults on the ability of specific alternate light sources to identify evidence of physical or sexual assault and also highlights some promising new technological adjuncts to alternate light sources that may allow for accurate dating of bruising.

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