Edmond Locard was the director of the world’s first crime laboratory in Lyon, France. The techniques that he developed proved useful to the French Secret Service during World War I, when he was able to determine where soldiers and prisoners had died by examining the stains on their uniforms. Locard's Exchange Principle states that with contact between two items, there will always be an exchange of some substance or other. This is the basis of trace evidence collection at a crime scene and is used in investigations worldwide daily.Often, investigators use this principle as the basis for investigations and record not only physical evidence but also the interaction between people. In the words of one investigator ‘Everyone leaves a footprint’. A short article on this investigator is at the following link:
http://www.ft.com/cms/s/0/0549499e-1008-11dd-8871-0000779fd2ac.html?nclick_check=1
Investigation is covered in several ARC courses, either subject specific or as part of a broader security management course. Take a look at the website or contact Janet for further details.
