Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Criminalist > Intro To Criminal Investigation > Flashcards

Intro To Criminal Investigation Flashcards

(65 cards)

Start Studying
1
Q

What is the search for the truth

A
  • Justice must be served
  • victims deserve closure
  • the good people must be protected
  • criminals must suffer the consequences for their actions
  • innocence or guilt is proven
  • must be good of all prejudices
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Criminal investigators are more concerned with…

A

Reconstruction of the past

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

What are some traits of a successful investigator

A
  • able to recognize criminal activity
  • resourceful
  • curious and inquisitive
  • good observational senses
  • unbiased and objective
  • able to make friends and secures cooperation from others
  • self controlled and tactful
  • working knowledge of law
  • persistent and drive to work
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the priorities in criminal investigation

A
  1. Proceed to scene safely
  2. Render aid
  3. Make the scene safe
  4. Find out what happen
  5. Effect the arrest
  6. Preserve and/or recover evidence
  7. Gather information
  8. Record the crime scene
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

While trying to preserve the scene should we destroy or change anything

A

No

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

While trying to preserve the scene should we add material that may be misleading

A

No

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

What should we consider when trying to preserve the scene

A

Trace evidence

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

While trying to preserve the scene should be move items

A

No, unless it is absolutely necessary

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

If we are processing the scene what should we do?

A

Identify the location and document the location before the evidence is recovered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Should we preserve blood and other bodily fluids

A

Yes

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

Should we allow victims, relatives, or others to clean up or put things back in order?

A

No, not until the investigation is complete.

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

When dealing with victims and all parties involved we should be…

A

Sensitive and use tact when explaining things

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

What should you do at YOUR crime scene

A

Document and keep precise records. Like arrival times, evidence recovered times, departure times

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

What kind of misconceptions do people have of The job

A

They believe what they see on television

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

What should you include in your scene diagrams?

A
  • All essential objects
  • include crucial distances
  • where items were found and recovered
  • path of suspects
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is Modus operandi (MO)

A

A particular way or method of doing something

How culprits go about doing their business

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is prima facie evidence

A

Evidence that is sufficient on its face value to establish a given fact

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

What is an interview?

A

Officer controlled conversation with a victim, witness, or anyone with information about the case

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are some general rules of interviewing

A
  • try to interview people separately
  • try to interview victim/complainant first, then eyewitness, then indirect witness, hostile witness, then suspect
  • know difference between interview and interrogation when questioning
  • consider persons emotional behavior (are they sober, rational, serious, consistent in their recollection
  • give priority to those emotionally distraught
  • motivate person to cooperate
  • use good communication skills
  • build rapport
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

An interrogation is

A

Officer dominated, accusatory exchange with the suspect

Deception can be used in interrogations

Interrogations are recorded

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

BEFORE any interrogation or interview what must be done

A

Read their Miranda Warning rights

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the primary methods of documentation

A

Crime scene diagram or sketch

Photos

Reports and note taking

Video

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

A first responding officer should possess an understanding of what

A

The investigative process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where can blood evidence be found

A

At the crime scene

On the victim

On the suspect

On a weapon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What are some factors that affect a search for evidence
Terrain Environment Size of the object Exigency
26
After arriving on scene, what should the first responding officer do
Make the scene safe
27
What is the difference between an interview and an interrogation
An interview is an officer controlled conversation with a victim or witness An interrogation is officer dominated accusatory exchange with the suspect
28
What are the four types of fingerprints
Patent Plastic Latent Inked (not found at scene)
29
Criminal investigators are concerned with the reconstruction of what?
Past
30
What services does the forensic biology lab provide?
Biological screening (blood, semen, saliva) DNA (parentage, crime scene, CODIS)
31
What services does the Forensic Biology lab NOT provide
ABO blood typing Civil parentage testing DNA testing for physical characteristics Mitochondrial DNA analysis Toxicology/STD testing
32
What is parentage Testing (paternity testing)
Determining if a man is the biological father from - sex assault - sex with a minor - incest Other types of parentage testing - kidnapping - missing persons - unidentified human remains
33
What are some sources of biological evidence at crime scenes
``` Blood Semen Saliva Skin cells Hair Urine/feces Tissue/bone/teeth ```
34
What can we get DNA from during sexual assault evidence cases
Clothing Condoms/tampon/sanitary napkin Tissues/ paper towels Bedsheets/ blankets Objects used to penetrate
35
Where can we get DNA evidence from in burglary and robbery cases
``` Cans/bottles/cups/straws Cigarette butts Weapons Tools Duct tape / zip ties Clothing Items left behind Blood like substances Touch DNA from interior door knobs and other surfaces ```
36
What kind of DNA evidence can we get from UEMV and UCPV cases
Blood like substances inside the vehicle Steering wheel Gear shifter Interior door handle Cans/bottles/cups/straws Left objects / clothing Cigarette butts
37
What does CODIS stand for
Combined DNA Index System DNA database maintained by FBI Purpose is to provide investigative leads Exist at both state and national level
38
Who qualifies for CODIS in Hawaii
Convicted offenders class A,B, C felons Persons convicted of, pleads no contest to, obtained a DAG, found not guilty by reason of insanity
39
When collecting biological evidence what should we do?
- Wear gloves - recover entire items when possible - swab when recovery of entire item is not possible - protect evidence from contamination - package biological evidence in paper whenever possible (dry wet evidence before submitting it into evidence room) - protect DNA evidence from harsh environmental conditions.
40
DNA can be found in which of the following A) blood B) semen C) saliva D) all the above
D) all the above
41
When collecting Biological evidence you should: A) package the evidence in a plastic bag B) wear gloves C) use bare hands to recover evidence D) store evidence in your vehicle
B) wear gloves
42
What services does firearm and tool mark unit provides
- identify and test fire firearms for operability - Identify and test fire ammunition - comparison of bullets and cartridge cases - distance determination - serial number restoration - tool mark comparisons
43
What is the purpose of test firing of firearms
Identify and test fire firearms for operability, including modified starter pistols, flare guns, sound suppressors, pellet/BB gun, electric gun devices
44
What are the legal barrel lengths
For a rifle is 16 inches minimum For shotgun is 18 inches minimum
45
What are some collection and preservation of FIREARM evidence
Do NOT use tap to indicate firearm is safe Do NOT wedge evidence tags, pen caps, etc Note condition of firearm when recovered
46
What are some collection and preservations of AMMUNITION
Do NOT use tape or sticker to label the cartridge or to keep them together Package rimfire ammunition so that it will not discharge unintentionally
47
Why do we performs tool mark comparison
Performed to determine if a particular tool was responsible for making a tool mark
48
What is trace evidence
Small, microscopic, forms of physical evidence used to associate victims, suspects, objects, and crime scene
49
What are some methods of transfer for trace evidence
- primary transfer: Fiber or hair transferred by DIRECT CONTACT - secondary transfer: fiber or hair transferred by way of an intermediate surface to another Person—->chair——>other person
50
When collecting samples what should we do
Collect a standard or reference sample
51
What are some types of trace evidence
``` Hair Fiber Glass Paint Fireworks Fire debris Gunshot residue ```
52
What are some collection methods
Hand picking (gloves or tweezers) Cellophane tape Post-it notes
53
Firework evidence
Can be extremely dangerous so submit 3 into evidence and contact SSD to destroy the rest
54
What is the nature of GSR
Microscopic metal particles that can be wiped or washed off Can be transferred Remains and hands for 4-6hours GSR should be collected as soon as possible
55
95-100% Accuracy in Matching
● Blood reference sample ● Buccal reference sample ● Fresh tissue (newly deceased, aborted fetuses)
56
50-95% matching
``` ● Blood/Semen/Saliva stains on clothing or crime scenes ● Vaginal/Oral swabs from SATC kit ● Envelope flaps/Stamps ● Cigarette Butts ● Beer cans/bottles ● Condoms/tampons ● Toothbrushes/razors ```
57
5-50% matching
● Anal swabs from SATC kit ● Fingernail/ scrapings ● Soda cans/ gum - sugar impairs ability ● Touch evidence - prolonged contact with the user increases chances
58
0-5% matching
● Single Hairs ● Urine/feces ● Liquid blood stored at room temperature ● Decomposed/cremated remains
59
What is a composite drawing?
Just a likeness of a person, it IS NOT exact.
60
What are 7 basic facial characteristics used to do a sketch?
``` ● Headshape ● Hair style ● Ears ● Eyebrows ● Eyes ● Nose ● Mouth NOTE: 4 or more are required! ```
61
People can be classified generally by skull structure between which 3 races?
Caucasoid, Negroid Mongoloid
62
What are the 3 ways to make measurements within a crime scene diagram/sketch?
● Rectangular Coordinates (indoor scenes, right angles, good for square or rectangular shapes) ● Baseline Coordinates (large outdoor scenes with items of interest scattered or where limited fixed objects are available) ● Triangulation Technique (mainly for outdoor scenes where right angles are not available, measurements made from two fixed points, and the distance is measured to complete a triangle)
63
What are QUESTIONABLE DOCUMENTS
any object/written document that is suspected of not being true Examples: ● robbery notes ● threatening/harassment letters or notes ● forged/counterfeit checks ● forged/counterfeit credit cards ● forged/counterfeit receipts
64
GSR Procedure
Use gloves Start at the web area and work out toward the fingers Sample the entire palm
65
Hshshdjdjbdhdns
Ndjdjdjd

Criminalist (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions