Crime scene documentation: Flashcards

1
Q

T or F: Documentation starts before arrival

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the order of four tasks:

A
  1. Note-taking
  2. Videography
  3. Photography
  4. Sketch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Documentation is done through . . .

A

“Step by Step actions”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Guidelines for note taking:

A
  • Notification (arrival)
  • Info surrounding (initial walkthrough)
  • Description of scene (conditions)
  • Description of scene (all evidence)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

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

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Guidelines at the scene:

A
  • Notification
  • Arrival
  • Initial walkthrough
  • Scene Description
  • Victim (if applicable)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Notification follows . . .

A
  • Date and time
  • Method of notification
  • Info received
  • Any info relayed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Arrival:

A
  • Means (transportation)
  • Date and time
  • Personnel present (scene)
  • Name and affiliation
  • Name of witness
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Initial walkthrough:

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Scene description:

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Detailed evidence:

A
  • Phy’s description (evidence exhibits)
  • Location
  • Position
  • Evidence collection
  • Who (name/affiliation)
  • When (date)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the guidelines of videography . . .

A

Must remain objective (no audio)
- Clear photos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What must a scene video include?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

T or F: all photographs must show a photo log

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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
What do overall photos involve:
Exterior, and Interior
26
Exterior:
Surrounding of scene - Aerial photographs - Location (indoor scene) relative to larger. - Demonstrate perimeter large (outdoor scene)
27
Interior:
Actual scene - Taken all 4 cardinal directions each room (coroner of indoor) - All photos (overlap) - Should include doors leading to and from
28
Mid-door:
Intermediate of evidence establishing - Shows where evidence is in the scene - Transition viewer (overall close up) - with and without evidence marker
29
close up:
purpose: show details specific evidence and detail scene (context)
30
What are the two types of close-up photos?
1. Photographs (evidence exhibit found) 2. Photograph (evidence exhibit) with marker
31
Sketches:
Permanent record size and distance - Relationships (all scene) and assocsiated evidence using measurements Routine for major crime
32
what are the two types of crime scene sketches?
Rough, and final
33
Rough:
Often done after the initial walkthrough - measurements done after photo
34
Final:
Prepared for presentation in court - Prepared based on rough
35
Every crime scene sketch:
Title and caption - Legend - Compass - Docu block - Case number Offence type - Victim names (if applicable) - Date and time - Name affiliation - Scale
36
Types of sketches:
- Floor plan - Site plan - Elevation - Cross-sectional plan
37
Floor plan:
Two dimensional sketch - Birds eye view - Indoor scenes (utilized)
38
Elevation:
Two dimensional (sketch) used for vertical plane
39
Site plan:
Two dimensional - Bird's eye view - Obtained by other sources (at times) - Utilized in outdoor
40
Cross-sectional plan:
"Exploded view"/ "cross projectional" - Two-dimensional (sketch) - Combination (Floor/elevation) - Utilized in both indoor and outdoor
41
Measurements:
All sketches (contain measurements) - Sketching often done last measurements
42
4 methods of search:
Triangulation, baseline, polar, perspective grid, photogrammetry
43
Triangulation:
measuring distances from two fixed points (locations of evidence) - fixed point: unmoveable item Requires multiple people - Best for outdoor scenes
44
Baseline:
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
Polar coordinate:
"Map and compass" - CSI stand at fixed point and sight evidence to exhibit - Requires 2 people
46
Photogrammetry:
"Perspective grid method" - Places an object of known measurements into a photograph - Multiple (overlapping phos)/multiple angles - Include standard measuring tool