Journal of Forensic Research

Laboratoire de Police Scientifique de Lyon, Service National de Police Scientifique, Ecully, France

Publications

• Research Article   
  Evaluation of Sperm Tracker® Spray for Semen Stain Localization
  Author(s): Sophie Dessaux, Emmanuelle Briant-Gicquel, Myriam Siffointe, Laurent Bartholin, Claude Descorme and Emilie Borges*
  
  Alternative-light sources (ALS) are widely used in both forensic laboratories and crime scenes for semen detection. This non-specific strategy is effective despite a few limitations, leading to both false negative and false positive results. To detect semen stains, specific acid-phosphatase (AP) tests can also be implemented in a controlled laboratory environment. However, they are not appropriate for direct crime scene investigations. A newly commercialized product could overcome all those limitations: Sperm Tracker (STK) Spray®, an AP-spray test for non-textile items. In this study, we assessed its specificity, sensitivity, and compared its effectiveness with those of two well-known ALS on a wide range of materials, focusing on 32 different surfaces that can be commonly encountered on crime scenes. We found STK spray® easy to use, with a rapid fluorescent signal ap.. Read More»
  DOI: 10.37421/2157-7145.2023.14.552

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