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Investigations > Section 5.4 > Flashcards

Section 5.4 Flashcards

1
Q

Some forensic people will tell you if you get a good voice recoding and they can compare it it will give you a high degree of certainty if it is the same voice or not. Does science support this?

A

no

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2
Q

Are voiceprints accurate?

A

no

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3
Q

You can take the spoken or written word and what they can tell about you based on the way you talk or write is what?

A

Language Analysis

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4
Q

Accents help with what?

A

language analysis

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5
Q

Accents and the way you talk can help determine where you are from. True or false

A

True

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6
Q

Are there different kinds of DNA?

A

Yes

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7
Q

What is the most useful DNA?

A

Nuclear DNA

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8
Q

Nuclear DNA is made up of four chemicals?

A

ACGT

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9
Q

Humans are based on base 10. DNA is base 4 and ACGT makes up the blueprints for every living thing. True or False

A

True

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10
Q

Found in the mitochondria part of the cells is what?

A

Mitochondrial DNA

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11
Q

Example, you and your mother and your grandmother and great grandmother have the exact same _________ DNA.

A

Mitochondrial

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12
Q

Nuclear DNA is a combination of what?

A

mom and dad

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13
Q

What DNA comes down through the female line and means that it only distinguishable to the family?

A

Mitochondrial DNA

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14
Q

Example, if we find DNA at the scene and we cannot get the nuclear DNA because it is degraded and we only get mitochondrial DNA we can only narrow it down to a family. True or False

A

True

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15
Q

What is the big database for DNA for the federal government?

A

CODIS

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16
Q

What are the two sections of the CODIS database?

A

known offenders

unidentified crime scene

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17
Q

This section has blood samples for known offenders.

A

Known offenders section

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18
Q

Example, people in prison if we have got their DNA sample it is stored in what part of the CODIS database?

A

Known offenders section

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19
Q

What section has unknown DNA from crime scenes?

A

Unidentified crime scene

20
Q

Example, if we have this unknown DNA at the crime scene we can check it against he known offenders and if it is unidentifiable we can put it in there and if someone is arrested later and taken to prison we can dun the DNA and see if it links. True or False

A

True

21
Q

Are the civilian databases for DNA?

A

Yes

22
Q

23 and Me

A

Civilian database for DNA

23
Q

The big question is can the government use civilian databases for solving crimes or is it a human rights violation? Big debate going on now. True or False

A

True

24
Q

what is a huge health hazard?

A

Blood

25
Q

Do not touch blood at a crime scene. There are all kinds of diseases you can get and you need to be a trained professional with a hazmat suit because it is what?

A

Huge health hazard

26
Q

Good thing is blood carries what?

A

DNA

27
Q

Once blood is too dry the DNA degrades and you cannot use it anymore. True or False

A

True

28
Q

If blood has degraded you still might be able to get what?

A

Blood type

29
Q

If we can type the blood we can compare it to the suspect to see if they can be eliminated. If they do not have the blood they can be eliminated and if they do it does not mean they are the suspect. True or False

A

True

30
Q

If there was a violent accident and someone had a hammer and hit someone on the head you would be able to tell based off of the what?

A

Blood spatter

31
Q

If you cut someone with a knife there would be different blood spatters as well as how hard you did it. True or False

A

True

32
Q

Just how the______ _______ on the wall will tell how hard the person was hit if it was blunt force or slicing or if the person was right or left handed. Etc.

A

Blood Sprays

33
Q

If the blood was cleaned up and you cannot see it anymore does It mean that it is gone?

A

no

34
Q

With most cleaning solutions you can still see blood staines with what?

A

Luminal

35
Q

It comes in a spray bottle and you spray it all over the place and you get a UV light and anywhere the blood used to be the _______ will cause it to glow brightly under it.

A

Luminal

36
Q

What will wipe out the ability for Luminal to be able to see blood that has been cleaned.

A

Bleach

37
Q

What part of the hair has DNA?

A

root

38
Q

Without DNA we can compare hair and blood typing. True or False

A

True

39
Q

What is very hard to match but easy to eliminate?

A

Hair

40
Q 
Lots of different fibers that fall into four categories: 
1.
2.
3.
4.
A
  1. vegetable
  2. animal
  3. synthetic
  4. mineral
41
Q

Vegetable fiber

A

cotton

42
Q

animal fiber

A

wool

43
Q

Synthetic fiber

A

Nylon, Raylon, Polyester

44
Q

Mineral

A

Fiberglass or Asbestos

45
Q

What is only scary if it gets airborne and into your lungs?

A

Asbestos

46
Q

Something that the suspect has left at the crime scene or something he has taken from the crime scene. It can go either direction. True or False

A

True

Investigations (21 decks)

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