Crime scene documentation: Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

T or F: Documentation starts before arrival

A

True

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2
Q

What is the order of four tasks:

A
  1. Note-taking
  2. Videography
  3. Photography
  4. Sketch
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3
Q

Documentation is done through . . .

A

“Step by Step actions”

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4
Q

Note taking is important because . . .

A
  1. Provides a permanent record (CSI may rely on notes in future)
  2. Seemingly insignificant info may be significant (everything has to be documented)
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5
Q

Guidelines for note taking:

A
  • Notification (arrival)
  • Info surrounding (initial walkthrough)
  • Description of scene (conditions)
  • Description of scene (all evidence)
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6
Q

T or F: It is ok to erase mistakes in prelim assessment

A

False

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7
Q

Guidelines at the scene:

A
  • Notification
  • Arrival
  • Initial walkthrough
  • Scene Description
  • Victim (if applicable)
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8
Q

Notification follows . . .

A
  • Date and time
  • Method of notification
  • Info received
  • Any info relayed
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9
Q

Arrival:

A
  • Means (transportation)
  • Date and time
  • Personnel present (scene)
  • Name and affiliation
  • Name of witness
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10
Q

Initial walkthrough:

A

Date and time began
- Who performed? Who else was in attendance
- Date and time ended

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11
Q

Scene description:

A

Description (scene location)
- Surrounding (house/streets)
- Indoor and Outdoor
- Condition/weather

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12
Q

Victim:

A

What info collected depends on weather the victim (alive/dead)
- Victim’s phys description
- Relevant demographic
- Description (wounds if visible)
- Presence/absence (identification)

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13
Q

Detailed evidence:

A
  • Phy’s description (evidence exhibits)
  • Location
  • Position
  • Evidence collection
  • Who (name/affiliation)
  • When (date)
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14
Q

What are the guidelines of videography . . .

A

Must remain objective (no audio)
- Clear photos

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15
Q

What must a scene video include?

A

Date and time
- Videography
- Location
- Case (number)

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16
Q

Effective scene video. . .

A

All aspects initial walkthrough
General view scene
- Enters scene moves through scene, shows items of evidence, wide-angle perspective
- Zoom in areas of evidence
- Leave scene (still record after left)

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17
Q

What purpose does photography hold?

A
  • Refresh memory (CSI and witness)
  • Demonstrates special relationships (scene and evidence)
  • Convey image of the scene (circumstance of crime)
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18
Q

T or F: all photographs must show a photo log

A

True

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19
Q

Photo log:

A

Proof of documentation taken at the scene . . .
- Date
- Case number
- Photographers name
- Info of equipment used (take photo)

20
Q

Information specific to each photo:

A
  • Date and time
  • Type of photo
  • description
  • Listing of each photo
21
Q

Equipment photography:

A

Still, photo used (norm)
- 35 mm film single lens reflex (SLR)
- DSLR (48 mm)
Higher megapixel, allows for better close-up photos

22
Q

Flash:

A

External flash, often better (flash built into camera)

23
Q

Camera lens:

A

Tools to bring up light (focal point)
- Lenses within DSLR (interchangeable)
- Normal 55mm/CSI “macro lens”
- Duplicates what the normal eye perceives.

24
Q

What do overall photos involve?

A

Arrival at scene
- Includes locator images
- Demonstrates (location scene)
- Serves (Capture scene condition, before alteration)
- Depicts overall scene context

25
Q

What do overall photos involve:

A

Exterior, and Interior

26
Q

Exterior:

A

Surrounding of scene
- Aerial photographs
- Location (indoor scene) relative to larger.
- Demonstrate perimeter large (outdoor scene)

27
Q

Interior:

A

Actual scene
- Taken all 4 cardinal directions
each room (coroner of indoor)
- All photos (overlap)
- Should include doors leading to and from

28
Q

Mid-door:

A

Intermediate of evidence establishing
- Shows where evidence is in the scene
- Transition viewer (overall close up)
- with and without evidence marker

29
Q

close up:

A

purpose: show details specific evidence and detail scene (context)

30
Q

What are the two types of close-up photos?

A
  1. Photographs (evidence exhibit found)
  2. Photograph (evidence exhibit) with marker
31
Q

Sketches:

A

Permanent record size and distance
- Relationships (all scene) and assocsiated evidence using measurements
Routine for major crime

32
Q

what are the two types of crime scene sketches?

A

Rough, and final

33
Q

Rough:

A

Often done after the initial walkthrough
- measurements done after photo

34
Q

Final:

A

Prepared for presentation in court
- Prepared based on rough

35
Q

Every crime scene sketch:

A

Title and caption
- Legend
- Compass
- Docu block
- Case number
Offence type
- Victim names (if applicable)
- Date and time
- Name affiliation
- Scale

36
Q

Types of sketches:

A
  • Floor plan
  • Site plan
  • Elevation
  • Cross-sectional plan
37
Q

Floor plan:

A

Two dimensional sketch
- Birds eye view
- Indoor scenes (utilized)

38
Q

Elevation:

A

Two dimensional (sketch) used for vertical plane

39
Q

Site plan:

A

Two dimensional
- Bird’s eye view
- Obtained by other sources (at times)
- Utilized in outdoor

40
Q

Cross-sectional plan:

A

“Exploded view”/ “cross projectional”
- Two-dimensional (sketch)
- Combination (Floor/elevation)
- Utilized in both indoor and outdoor

41
Q

Measurements:

A

All sketches (contain measurements)
- Sketching often done last measurements

42
Q

4 methods of search:

A

Triangulation, baseline, polar, perspective grid, photogrammetry

43
Q

Triangulation:

A

measuring distances from two fixed points (locations of evidence)
- fixed point: unmoveable item
Requires multiple people
- Best for outdoor scenes

44
Q

Baseline:

A

Measuring the distance other of objects from the baseline (right angle)
- Indoor: Baseline (wall)
- Outdoor: Baseline (related) to a fixed point (requires multiple people)

45
Q

Polar coordinate:

A

“Map and compass”
- CSI stand at fixed point and sight evidence to exhibit
- Requires 2 people

46
Q

Photogrammetry:

A

“Perspective grid method”
- Places an object of known measurements into a photograph
- Multiple (overlapping phos)/multiple angles
- Include standard measuring tool