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CITP Exam 3 > Physical Evidence > Flashcards

Physical Evidence Flashcards

0
Q

What are examples of “Impression” evidence?

A
  • Fabric Patterns
  • Tool Marks
  • Footwear
  • Bite Marks
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1
Q

What are the 3 types of evidence?

A
  1. Testimonial (Statements)
  2. Documentary (Written)
  3. Physical (Real)
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2
Q

What are examples of “Trace” evidence?

A
  • Hair/Fibers
  • Paint
  • GSR
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3
Q

What is the basis for Locard Exchange Principle?

A

Everything leaves a trace

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4
Q

What are the 3 parts to the “Evidence Triangle”?

A
  1. Scene
  2. Suspect
  3. Victim
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5
Q

What is the difference between Class and Individual characteristics?

A

Class - shared by similar objects

Individual - demonstrates “uniqueness of individuality”

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6
Q

What are the characteristics of Physical Evidence?

A
  • Real
  • Tangible
  • Form/Mass
  • Visible/Invisible
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7
Q

What are the different methods of evidence documentation?

A
  1. Notes
  2. Photographs
  3. Sketches
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8
Q

What are the 3 main perspective photographs taken?

A
  • Overall
  • Intermediate
  • Close-up
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9
Q

What is the purpose of sketches?

A

Provides a 2-dimensional record of the crime and/or search scene

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10
Q

What should be included in the Title Block of the sketch?

A
  • Agency Case No., Title, or Offense
  • Date sketch was drawn
  • Location
  • Name of sketcher/assistants
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11
Q

What are the 4 types of drawings?

A
  • Locality Drawing
  • Area Drawing
  • Detailed Drawing
  • Cross Projection
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12
Q

What are the methods of measurement?

A
  1. Baseline
  2. Rectangular Coordinate
  3. Triangulation
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13
Q

What are the 3 basic stages to the Crime Scene Search?

A
  1. Preparation
  2. Approach
  3. Basic Premises
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14
Q

What are the major assignments/duty positions in a Crime Scene Search?

A
  • Team Leader
  • Photographer
  • Sketcher
  • Evidence Custodian
  • Evidence Recovery
  • Specialists
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15
Q

What is the organizational state to plan for the entire search?

A

Preliminary Survey of the Scene

16
Q

What are the different types of search patterns?

A
  • Strip/Lane
  • Grid
  • Zone/Sector
  • Spiral
  • Counter/Clockwise
17
Q

What are the stages of a search?

A
  1. Documentation
  2. Search
  3. Record and Collect
  4. Final Survey
  5. Release of Scene
18
Q

What is the “goal” of collecting evidence?

A

Preserve evidence to protect it from change

19
Q

How should you package clothing when collecting?

A

Collect the entire garment if possible, allow to air-dry on plastic hanger over a clean collection paper if wet, place in porous container

20
Q

How should blood and other bodily fluids be collected?

A

Collected in a clean, unused plastic container and transported back to evidence, not to exceed 2 hours in its sealed container.

21
Q

What are the 3 types of prints?

A
  1. True “Latent”
  2. Visible Latent
  3. Plastic Print
22
Q

What is the Chain of Custody considered?

A

A “life history” of the item from the time it was discovered until its no longer needed

23
Q

Who needs to be on the Chain of Custody form?

A

Everyone who has taken possession of the item

24
Q

What form is needed to run laboratory analysis on evidence?

A

Letter of Transmittal

25
Q

What should be on the Letter of Transmittal?

A
  • Investigators (Name/Agency/Contact info)
  • Case identifiers
  • Brief description of case
  • All people involved
  • Inventory of items contained
  • The types of examinations you wish to be done
  • Return information for results
26
Q

Where does the rough sketch take place? What needs to be on it?

A

At the scene; Title Block, North arrow, Annotation

27
Q

What type of evidence is collected first?

A

Fragile

28
Q

What is the procedure for packing evidence?

A
  1. Document
  2. Mark
  3. Place in container
  4. Seal it

CITP Exam 3 (10 decks)

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