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Crime Scene GPSTC 321-320 Exam Questions and Answers
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Crime Scene GPSTC 321-320 Exam Questions and Answers
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Crime Scene GPSTC 321/320 ExamQuestions and Answers
Classification of evidence - Answers -direct, real, circumstantial
direct evidence - Answers -evidence that (if true) proves an alleged fact, such as an
eyewitness account of a crime
real evidence - Answers -physical evidence - such as a weapon, records, fingerprints,
and stolen property - involved in the crime
the shell casing, blood, physical items
circumstantial evidence - Answers -(indirect evidence) evidence used to imply a fact but
not prove it directly
has a logical relationship between the person and the crime
The Evidence Triangle - Answers -1. Crime Scene
2. Victim
3. Suspect
trying to link all three together
victim to susp, susp to crime scene, crime scene to vict
Identification of investigative factors - Answers -investigative factors provide information
about a crime that serve determine who committed it
without an investigative factor the chances of crime solution are - Answers -small
preliminary investigation - Answers -All of the activities undertaken by a police officer
who responds to the scene of a crime, including determining whether a crime has
occurred, securing the crime scene, and preserving evidence.
12 Major investigative factors - Answers -1. Witness to the crime
2. Knowledge of the suspects name
3. knowledge of where a suspect can be located
4. description of a suspect
5. identification of a suspect
6. property with identifiable characteristics , marks, or numbers, so it can be traced
7. a significant modus operandi
8. Significant physical evidence
9. Description that IDs the automobile used by the subject
, 10. positive results from a crime scene search
11. belief that the crime can be solved with publicity or reasonable additional
investigative effort
12. Opportunity for only one person to commit the crime
First Response to a Crime Scene - Answers -administer aid to injured parties
protect the scene (limit unnecessary walking about, do not allow items to be moved or
handled)
Limit access to the scene
identify witnesses
identify suspects
Make notes of ________________________ and other details that can be used by an
investigator - Answers -times, dates, weather conditions
Record the Scene - Answers -and observe before acting
Investigators have only a limited amount of time to work the site of a crime in its
untouched state, so this time must not be lost.
Methods of searching a crime scene - Answers -Point to point, sector or zone,
concentric circle or spiral, strip double strip or grid, wheel or pie pan, and line
Point to point search - Answers -Move in order of appearance of evidence (from #1 to
#2, #2 to #3, etc)
Often disorganized, trace evidence may be overlooked
Sector or Zone Search - Answers -can be done inside or outside
divide and assign responsibilities of sectors
Concentric Circle or Spiral Search - Answers -this method may be used in explosions
and scenes examined by a single investigator. a logical starting point is selected and a
search begins from the point of emphasis outward
A strip search - Answers -each officer walks along a parallel strip within the scene. once
reaching the outer perimeter, the officer turns
like mowing a yard
double strip search - Answers -divided into separate lanes
two or more officers search the area along parallel strips until the scene is examined
then search opp direction same way
Wheel or Pie pan - Answers -circular area to be searched divide into sections like pie.
make sure the areas are the same
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