charles - augustin de coulomb stated that there is an exchange of materials when two objects come into contact with each other.
charles - augustin de coulomb stated that there is an exchange of materials when two objects come into contact with each other.
who stated that there is an exchange of materials when two objects come into contact with each other?
charles - augustin de coulomb
Na
Na
section::::history.:late 19th – early 20th centuries figures.









































hans gross applied scientific methods to crime scenes and was responsible for the birth of criminalistics.









































edmund locard expanded on gross' work with locard's exchange principle which stated "whenever two objects come into contact with one another, materials are exchanged between them". this means that every contact by a criminal leaves a trace. locard was also known as the "sherlock holmes of france".









































alexander lacassagne, who taught locard, produced autopsy standards on actual forensic cases.
forensic science