After completing this module, you will be able to:
Discover how a crime scene is secured.
Examine the different ways in which a crime scene is recorded.
Learn how forensic scientists and officers search a crime scene for evidence.
Investigate how evidence is collected and packaged.
Learn why evidence needs to be collected carefully and within legal guidelines.
Anything that can establish that a crime took place
and anything that links the crime to the criminal.
Physical evidence might include objects like
weapons, fibers, and hair. In fact, virtually any
object could be considered physical evidence under
the right circumstances. Law enforcement officials
may collect physical evidence from the crime scene
itself, from individuals connected to the crime, or
from a suspect’s car or home.
To process and analyze physical evidence,
investigators must first recognize objects
Because physical evidence can be subtle,
investigators should collect all potential evidence
from the crime scene. At the same time,
investigators can’t collect everything, or they would
have too many objects to analyze. Forensic
scientists are trained to recognize physical evidence
and distinguish it from other objects at the scene of
The place where the crime occurred.
The first officer who arrives at the scene is the
; this may be a paramedic, a fire
fighter, a police officer, or other emergency
personnel, but no matter their title or uniform, the
first responder is responsible for making sure
everyone at the scene of the emergency is safe.