the crime scene “never touch, change, or alter anything until it has been documented, identified,...
TRANSCRIPT
THE CRIME SCENE
“Never touch, change, or alter anything until it has been documented, identified, measured, and photographed … when a body or article has been moved, it can never be restored to its original position”
3
As automobiles run on gasoline, crime laboratories “run” on physical evidence.
Physical evidence encompasses any and all objects that can establish that a crime has been committed or can provide a link between a crime and its victim or a crime and its perpetrator.
But if physical evidence is to be used effectively for aiding the investigator, its presence first must be recognized at the crime scene.
THE CRIME SCENE THE SUSPECT THE VICTIM
“Physical evidence can’t lie, quit, forget or get fired.”
BEFORE AN OBJECT CAN BECOME EVIDENCE, IT MUST BE RECOGNIZED BY THE INVESTIGATOR AS HAVING A RELATIONSHIP TO THE CRIME COMMITTED
ADMINISTER FIRST AID
ARREST PERPETRATOR
REQUEST AID
DETAIN AND IDENTIFY WITNESSES
SAFEGUARD CRIME SCENE
DETERMINE CRIME SCENE AREA EXCLUDE ALL PERSONS BLOCK OFF BOUNDARIES IDENTIFY AND SEGREGATE
WITNESSES NOTE DETAILS FOR LATER AVOID UNNECESSARY WALKING
ABOUT DON’T TOUCH ANYTHING PROVIDE INFORMATION TO
INVESTIGATORS
Photography
Sketching
Notes