FORENSICS UNIT 2
Locard's Exchange - correct answer-Whenever two objects come into contact with one
another, a cross-transfer of physical evidence can occur
what three factors determine the extent of the transfer of forensic evidence? - correct
answer-intensity
duration
nature
give three examples of direct evidence - correct answer-eyewitness account
videos
confessions
circumstantial evidence - correct answer-indirect evidence that can be used to imply a fact,
but does not directly prove it
three categories of circumstantial evidence - correct answer-physical
biological
trace
class evidence - correct answer-narrows evidence to a group of people or things
individual evidence - correct answer-narrows evidence down to a single person or thing
why is evidence important? - correct answer-1. can prove a crime has been committed and
set the scene for investigators
2. can back up/disprove witness testimony
3. can link a suspect with a victim/crime scene
4. can determine identity of people associated with a crime
5. allows investigators to reconstruct a crime
crime scene investigation team - correct answer-first police officer on the scene
backup police
district attorney
medics
investigator/detective
medical examiner
photographer/field evidence technician
lab experts
who is responsible for securing a crime scene? - correct answer-First officer to arrive at the
scene
two priorities for securing a crime scene - correct answer-1. make sure all individuals in the
area are safe
Locard's Exchange - correct answer-Whenever two objects come into contact with one
another, a cross-transfer of physical evidence can occur
what three factors determine the extent of the transfer of forensic evidence? - correct
answer-intensity
duration
nature
give three examples of direct evidence - correct answer-eyewitness account
videos
confessions
circumstantial evidence - correct answer-indirect evidence that can be used to imply a fact,
but does not directly prove it
three categories of circumstantial evidence - correct answer-physical
biological
trace
class evidence - correct answer-narrows evidence to a group of people or things
individual evidence - correct answer-narrows evidence down to a single person or thing
why is evidence important? - correct answer-1. can prove a crime has been committed and
set the scene for investigators
2. can back up/disprove witness testimony
3. can link a suspect with a victim/crime scene
4. can determine identity of people associated with a crime
5. allows investigators to reconstruct a crime
crime scene investigation team - correct answer-first police officer on the scene
backup police
district attorney
medics
investigator/detective
medical examiner
photographer/field evidence technician
lab experts
who is responsible for securing a crime scene? - correct answer-First officer to arrive at the
scene
two priorities for securing a crime scene - correct answer-1. make sure all individuals in the
area are safe
