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Forensic Science > Crime Scene Quiz > Flashcards

Crime Scene Quiz Flashcards

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1
Q

Sketches can also give a permanent record of

A

The relationship of different points of interest to each other in the scene

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2
Q

Sketches do what better than a photograph?

A

Sketches may give a better overall layout of the scene than do photographs

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3
Q

What allows for selectivity?

A

Sketches

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4
Q

What is the most important role of the sketch?

A

To give measurements, scale, and relative placement of all important details in the crime scene

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5
Q

What should sketches include

A 
The date and time 
Scale
Reference points
Distance measurements 
The name of investigators
Victims & suspects
A legend
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6
Q

Photographs can capture

A

Details that even the most observant investigator may miss

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7
Q

What should an investigator do before touching or moving any evidence

A

Photograph the scene

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8
Q

Where should they pay special attention to?

A

Points of entry and exit

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9
Q

Photographs help

A

The investigator and witness remember details
They show where evidence is placed in the scene
Help the judge and jury visualize the crime scene

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10
Q

The investigator should include photos that

A

Clarify the scene
Close-up photos of evidence
Photos of the scene as viewed through the eyes of a witness
Photos of the location of the scene and its surroundings

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11
Q

All photographs should include

A

A rule for scale and be carefully documented and kept as evidence

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12
Q

Anything that might carry race evidence is

A

Collected for later examination in the lab

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13
Q

Special lighting may be used

A

To spot body fluids that would be invisible in normal light

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14
Q

How the investigator carries out the search depends on the

A

Since of the area, location, and the complexity of the crime scene

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15
Q

Too many investigators _________________, too few investigators ______________.

A

Get in each other’s way and may destroy evidence, miss evidence

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16
Q

A large area may

A

Be divided into designated sections for systematic searching

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17
Q

The investigators must put each time collected

A

In a seperate container or package and label it

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18
Q

The most _______ evidence is collected and packaged first

A

Fragile

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19
Q

If evidence is found sticking to a larger object…

A

…the whole garment is collected, packaged, and sent to the lab

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20
Q

What are good containers for most evidence

A

Pill bottles
Vials
Manila envelops
Plastic bags

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21
Q

Wet items must

A

Be dried before packaging

22
Q

Containers should be

A

Sealed tightly

23
Q

Biological items

A

Should be dried and kept in a freezer

24
Q

Clothing with trace evidence should

A

Be packed carefully to avoid disturbing the evidence

25
Q

Firearms should be

A

Gives rigidly inside a wooden container

26
Q

Evidence from a suspected arson should be

A

Kept on an airtight container so that the fumes from an accelerant cannot evaporate

27
Q

What can be used that picks up everything

A

A vacuum cleaner and an adhesive tape

28
Q

What are controls

A

Samples with a known origin

29
Q

The first officer steps are

A
  • secure and isolate the crime scene

- observe and document the scene

30
Q

First officer on the scene

A 
Asses the crime scene and sissy those hurt 
Detain the witness and suspects 
Arrests the perpetrator(s)
Protect the crime scene 
Take notes
31
Q

What does adapt stand for

A 
Asses the crime scene and sissy those hurt 
Detain the witness and suspects 
Arrests the perpetrator(s)
Protect the crime scene 
Take notes
32
Q

Use oblique lighting to

A

Help reveal items not visible

33
Q

What can be taken without altering the scene

A

Photographs

34
Q

Each piece of evidence must be photographed in

A

It’s original spot

35
Q

Take pictures of the body

A

When it’s there and after its removed

36
Q

A rough sketch

A

Employs an accurate depiction of the dimensions of the scene and shows the location of all objects having a bearing on the case

37
Q

In a sketch all measurements are made with

A

A tape measure

38
Q

How to create a sketch

A

Computer aided drafting (CAD)

39
Q

Serves as a _____________ when interviewing the suspect

A

Frame of reference

40
Q

Sketches give what to photos

A

Sketches give perspective

41
Q

What are the 4 types of sketches

A

Overhead, cross projection, elevation, perspective

42
Q

A sketch can

A
  • depict entire scene in one visual (a photograph cannot)
  • reveal detail of an it me in shadows
  • be selective and eliminate distracting confusion
  • record spatial relationship between items
43
Q

What’s the most common and basic style of sketches

A

Overhead

44
Q

Inward spiral

A

The csi starts at the perimeter of the scene and works toward the center (good method when there is only one CSI on the scene)

45
Q

Parallel

A

All the members of the CSI team form a line. They walk in a straight line, at the same speed, from one end of the crime scene to the other

46
Q

Grid search

A

A grid search is simply two parallel searches off set by 90°, performed one after another. large outdoors area.

47
Q

Zone search

A

The csi in charge divides the crime scene into sectors and each team member takes one sector. Team members may then switch sectors and search again to ensure complete coverage.

48
Q

Collecting evidence autopsy room

A

Medical examiner carefully examined the victim to establish a cause and manner of death

49
Q

In an autopsy room what is collected and sent to the lab

A
  • victims clothing
  • fingernail scraping
  • head and pubic hairs
  • blood
  • vaginal, anal, and oral swabs
  • recovered bullets from the body
  • hand swabs
50
Q

What is better? Paper or plastic

A

Paper bags are better than plastic

51
Q

Blood-soaked clothing must not be stored in

A

Air-tight containers because the trapped moisture may cause the growth of mildew and mold and destroy the blood

52
Q

Sketching the science can help investigators

A

To notice and remember details through the simple act of drawing

Forensic Science (6 decks)

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