Johnson Family Lecture Series 

"How Can Minute Evidence Tell Us The Story About A Crime?" with Dr. Tatiana Trejos 

Jenkin and Barbara David Theater within Alumni Hall on Park University's Parkville Campus
Tuesday, March 27, 2018
6:00pm - Mock Crime Scene
7:00pm - Presentation

In this presentation, we will take a journey to the fascinating world of microscopic evidence and how these tiny elements can tell us the story about a crime. While DNA evidence can tell us who could have or have not committed a crime, trace evidence can serve as a mute witness to determine how, when or where a particular event happened?


Trace evidence refers to small pieces of materials, often invisible to the naked eye, which are left behind at a crime scene. These minute items derive from everyday objects in our surroundings such as paints, fibers, hairs, glass, soil, tape and cosmetics. Data about how these traces are transferred during an event, for how long they persist, and how common they are is used to assist case investigations. For instance, the information can become key for decisions at the investigative stage and to provide the trier of fact objective information to make verdicts about the guilt or innocence of an individual.


This presentation describes the innovative technology used to detect those small clues and examples of its application to forensic and intelligence investigations.


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