Initial response and scene security Flashcards

1
Q

Who is called within the three-tiered response:

A

Police, Emg’s, and the Fire department

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

T or F: the safety of first responders is paramount

A

True

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

What comes after the priority of first responders?

A

Preservation of life (if the person is not deceased)

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

What must be first established on a scene?

A

An inner and outer perimeter, but also a “path of contamination”

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

Path of Contamination:

A

Asses boundaries and instructs first responders how to enter and exit the scene.
- Least likely to have evidence or to be travelled by suspect and victim.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the role of the responding officer?

A

Ensure safety of first responders. . .
- Asses’s scene and secure (path of contamination)
- Documentation
- Transference of responsibility

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

What further establishes scene safety?

A

Looking for immediate threats to first responders
- Render scene (see if suspect is on scene)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Lifesaving measures are done once . . .

A

Scene is deemed safe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Scene security is preserved through . . .

A
  • Phsysical presence
  • Police line tape
    -Locks/barriers
  • method depends
  • barricades (vehicles)
  • Methods (scope/location)
  • Death investigation (tents to conceal death)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What perimeters are there?

A

Inner and Outer

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

Inner:

A

Core area where criminal act occurred

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Outer:

A

Includes probable entry and exit routes
- police tape

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

Rule of thumb:

A

Designates a large perimeter
- Always better to make the Perimeter bigger, and then adjust.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Security log:

A

Documented notes of all peoples who enter and exit the scene

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

Who takes care of the security log:

A

Scene security officer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does the scene security log contain?

A
  • Name and affiliation
  • Time and entry
  • Why their on the scene
  • Under whose authority
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What does the security log ensure?

A
  • Crime scene and evidence
  • Possible contamination/cross contamination
    Especially in important cases where crime scene record evidence and analyzed (a lot of time)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the process of documentation?

A
  1. Entering scene
  2. Observe (take written notes)
  3. Document everything (including info surrounding dispatch and arrival at scene)
    - Even negative info (mistakes/honest errors disclosed)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

T or F: It is also important to document witness statements

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What causes contamination of evidence?

A

Human error, and not wearing PPE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What does PPE include?

A
  • Tyvek suits
  • Disposable shoe covers
  • Mask/other respiratory protection (covers mouth and nose)
  • Googles/eye protection
  • Face shield (prevent droplets of fluid)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Double glove technique:

A

Wear two purple nitrile gloves on top of one another
- Prevents accidental tear and contamination of evidence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

T or F: the CSI is one of the first people to arrive at the scene

24
Q

Prelim assessment:

A

Ongoing process
- Initial walkthrough completed and takes notes.

25
"Look but don't touch"
Develop a plan and approach - Dont touch evidence without PPE
26
What does the initial walkthrough allow?
- Determine the nature/extent of the scene - CSI may adjust the perimeter - Develop a theory of crime - Create a rough sketch (evidence location) - Develop team approach - Determine search technique
27
What are two legal aspects when obtaining evidence?
Search and Seizure
28
Search:
"Something that infringes one's reasonable expectation of privacy"
29
Seizure:
"The taking of a substance thing belonging to, or in care and control of persona by public authority"
30
T or F: Reasonable searches and seizures are accepted as a valid social society mechanism
True
31
"Everyone has the right to be secure against reasonable search and seizure"
Requires that unjust searches do not occur. - Accomplished through pre-judicial authority
32
Search warrants provide . . .
1. Judicial review and authority 2. No warrant= search unreasonable 3, Prosecution must prove that the search is not unreasonable
33
Expectations to pre-authorized search warrant
1. Incident to arrest and investigative detention 2. Consent and abandonment 3. Plain view doctrine 4. Exigent circumstancnces
34
Incident to arrest and investigative detention:
May search person and immediate vicinity (arrest/seize) if the search is conducted (reasonable manner).
35
Consent/abandonment:
Persona has reasonable expectation (privacy) in relation (entity) to be searched Or The property has been (abandoned.
36
Plain view doctrine:
When conducting a lawful search and if one crime/evidence is in plain view (seize)
37
Exigent circumstances:
If the court finds circumstances existed (required immediate) action (ensure safety) - Evidence that isn't feasible has to obtain judge authorization
38
T or F: crime scene searches are intrusive
True
39
T or F: searches are methodological and systematic
True
40
Search team members must do the following when performing a search . . .
- What method to use - How (conduct the search) - How (manage evidence found) - Mark items (without touching/altering) - Alert search leader
41
What are the 6 search methods?
- Strip - Grid - Link - Zone - Wheel - Spiral
42
Strip method is also referred to as . . .
"Line method"
43
Strip method:
Search in strips (2 by 4 wide) - Multiple searches (form line where strips overlap) 1. Supervised (search leader) 2. Search (left to right) 3. Move (same pace)
44
What is type of scene is the strip method best used for?
Outdoor scenes
45
Grid method is also referred to as . . .
"Double strip" or "Double line method"
46
Grid method:
- Line search in one direction, change at a 90-degree angle, and search again - 2 searchers, line of searchers
47
What are the pros and cons of the Grid method?
Pro: scene searched twice - Not likely to miss any evidence Con: Time consuming
48
The link method is based on what theory?
Linkage theory
49
What is the most common search method?
Link method
50
Link method:
One thing influences/determines (process and outcome of another) - Not Geometric (based on findings, observation, and logic) - Probability (based on crime, evidence likely found in a particular location)
51
Zone method:
Allows certain zones (prioritized) - Best for scenes within defined zones. - May utilize (other search methods for each zone)
52
Wheel method is also referred to as . . .
"Ray" or "Pie" method
53
Wheel method:
Search critical points and extend outward in straight lines. - Not good in large scenes
54
Spriral method:
Inward: start (outer boundary) and circle towards the critical point Vs. Outward: Start at a critical point and extend outward. Searcher traces regular pattern (fixed diameter)
55
T or F: spiral method is best used for scenes without barriers
True
56
What are the five steps of a vehicle search?
1. Search interior 2. Begin searching in segments (look for fingerprints) 3. Research segments (search for evidence) 4. Search trunk and hood 5. Undercarriage searched - Generally reserved in instances where vehicle was in an accident.