2nd test Flashcards

(33 cards)

1
Q

what is the first step in processing a crime scene?

A

securing it

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2
Q

who secures the crime scene

A

the first officer to arrive at the scene

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3
Q

what does the responding officer need to do to set boundaries

A

set up crime scene tap or use saw horses as well as clear unauthorized people

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4
Q

who are unauthorized people

A

press, eyewitnesses, spectators, family, neighbors, victims, and criminals

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5
Q

who are authorized people

A

police, CSI, EMTs, Paramedics, firefighters, medical examiners, and bomb squad

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6
Q

what is the second step in processing a crime scene

A

recording the scene

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7
Q

what steps do you do to record a crime scene

A

photograph, sketch, and take notes

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8
Q

photographing a scene

A

different angles and close ups of evidence allowing them to see crime scene even when its gone. weather can destroy evidence and everything

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9
Q

sketching a scene

A

rough diagram of the scene which focuses on important stuff such as a bullet hole, gives you location and distance in reference to other things

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10
Q

Notes in a scene

A

handwritten or voice recorded details of the scene, any objects, victims or interviews

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11
Q

why is it important to have sketches and notes to go along with the crime scene photos

A

notes can describe the smells, sounds, temperature and anything through the senses. Pictures do not. sketching can focus on important part of scene where i a picture someone might look at something not important

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12
Q

why do you need to do a “systematic” search of the crime scene?

A

this assures that all evidence is found and all areas are searched

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13
Q

what are the common search methods

A

spiral, grid, line, and zone

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14
Q

spiral search method

A

best for open spaces, best when solo or in a team

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15
Q

grid search method

A

most common, set when working alone and if there is lots of evidence, best if there lots of clutter so you are thorough

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16
Q

line search method

A

most often done with a partner, best when their is narrow spaces or a location that is naturally straight

17
Q

zone search method

A

best for when there is an area with multiple spaces, houses, stores, and vehicles, always done in teams

18
Q

what are things to keep in mind when collection evidence

A
  1. its priority - wether or not you need to collect it first before it gets tampered
  2. its relevance and importance to the case
  3. select the correct packaging
19
Q

why is it necessary to package each piece of evidence separately?

A

to avoid cross examination

20
Q

what is the chain of custody?

A

a list of persons who came into possession of an item of evidence

21
Q

why is the chain of custody so important (2 things)

A

it upholds the integrity of the evidence and protects authenticity

22
Q

what does the chain of custody contain

A

description, date, location, time, initials, and tests performed

23
Q

when does the chain of custody start

A

begins at the crime scene and ends when the case is closed

24
Q

what are standard reference samples

A

samples taken from an area in close proximity to evidence, we compare to evidence and eliminate and “normal” substances

25
what are reference samples
taken from a known source, compare to evidence to find a match
26
why do we need standard and reference samples
we need them for comparison purposes
27
what are two ways to submit evidence
personal delivery and mail
28
what is personal delivery and what does it do
you bring it write to the person directly and they sign for it. keeps the chain of custody intact
29
what is mail and what does it do
if there are no local labs around your area that can do what you needed to be done, you can mail it somewhere else.
30
What are things not to do at a crime scene
eat, drink, smoke, apply make up, use the facilities, sneeze
31
what safety precautions are taken at a crime scene
protective gear such as hazmat suits, double gloves, appropriate eye wear
32
what are the legal considerations that crime scene investigators need to think about when responding to a crime?
to follow proper procedures, recorded right and follow proper order of procedure and the 4th amendment
33
what are the four ways around the 4th ammendment
1. any state of emergency 2. immediate loss of evidence 3. an arrest 4. consent