Name _____________________________________________________ Period ________ Date _____________________
Chapter 2: Crime-Scene Investigation & Evidence Collection
Principle of Exchange
The first part of Locard’s Exchange Principle
Whenever two people come into _________________________'>_________________________ with each other, a physical _________________________ occurs
Transferred materials are considered to be ______________________________________________
Pet hair, _________________on a brush, fingerprints on glass, soil tracks from _________________, drop of ____________________ on clothing, _____________________ chip
The second part of Locard’s Exchange Principle
The _________________________, _________________________, and nature of the materials in contact determine the _________________________ of the transfer
Ex: ____________________ transfer would occur between two in a fist fight as opposed to two people brushing past another
What is Evidence?
Information that can and should ____________________________ the beliefs of an observer (judge and jury) about a specific legal question