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Touch DNA refers to the transfer of human skin cells or epithelial cells left behind on an object or surface through physical contact. This type of DNA evidence can provide valuable information in criminal investigations, as well as in forensic science, as it can help link a suspect to a crime scene, or help to eliminate suspects from consideration. Touch DNA can be recovered from a variety of surfaces, including skin, hair, clothing, tools, and weapons.


In this episode, take a look at the process that's used and see how it's applied in cases such as the homicides in Moscow.



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