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Touch DNA: Unlocking the Potential of Trace Evidence in Forensic Investigations
Abstract
Touch DNA analysis has emerged as a powerful tool in forensic science for the identification and profiling of individuals based on the DNA left behind through direct contact with surfaces. This chapter is on touch DNA analysis, focusing on its principles, methodologies, applications, and challenges. Touch DNA refers to the cellular material transferred from the skin to objects during routine human activities, such as handling, grasping, or touching. Touch DNA analysis plays a crucial role in criminal investigations, allowing forensic scientists to link individuals to crime scenes, objects, or victims, even in the absence of visible biological evidence. Overall, touch DNA analysis represents a valuable forensic tool for identifying perpetrators, exonerating the innocent, and contributing to the administration of justice in criminal proceedings.
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