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Flashcards in 2nd test Deck (33)
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1
Q

what is the first step in processing a crime scene?

A

securing it

2
Q

who secures the crime scene

A

the first officer to arrive at the scene

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

4
Q

who are unauthorized people

A

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

5
Q

who are authorized people

A

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

6
Q

what is the second step in processing a crime scene

A

recording the scene

7
Q

what steps do you do to record a crime scene

A

photograph, sketch, and take notes

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

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

10
Q

Notes in a scene

A

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

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

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

13
Q

what are the common search methods

A

spiral, grid, line, and zone

14
Q

spiral search method

A

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

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

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
Q

what are reference samples

A

taken from a known source, compare to evidence to find a match

26
Q

why do we need standard and reference samples

A

we need them for comparison purposes

27
Q

what are two ways to submit evidence

A

personal delivery and mail

28
Q

what is personal delivery and what does it do

A

you bring it write to the person directly and they sign for it. keeps the chain of custody intact

29
Q

what is mail and what does it do

A

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
Q

What are things not to do at a crime scene

A

eat, drink, smoke, apply make up, use the facilities, sneeze

31
Q

what safety precautions are taken at a crime scene

A

protective gear such as hazmat suits, double gloves, appropriate eye wear

32
Q

what are the legal considerations that crime scene investigators need to think about when responding to a crime?

A

to follow proper procedures, recorded right and follow proper order of procedure and the 4th amendment

33
Q

what are the four ways around the 4th ammendment

A
  1. any state of emergency
  2. immediate loss of evidence
  3. an arrest
  4. consent