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CSI > Final exam > Flashcards

Final exam Flashcards

1
Q

What are fingerprints?

A

An impression of the friction ridges found on the inner surface of finger, thumb or palm. Belongs to one individual.

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2
Q

Could fingerprints be found somewhere else than on fingers?

A

Yes, on palm and feet.

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3
Q

What is friction ridges?

A

It is a corrugated condition of the skin that gives a gripping surface to the hands and feet.

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4
Q

What is bertillonnage?

A

Une technique criminalistique qui repose sur l’analyse biométrique accompagnée de photographies de face et de profil.

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5
Q

What is required to take fingerprints/photographs?

A

1) The individual must be in LAWFUL CUSTODY.
2) He/she must be charged with a criminal offense.
3) He/she has been convicted of a criminal offense.

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6
Q

What if a person refuse to give his f*prints?

A

1) The person could be charged with another criminal offense under the Criminal Code.
2) The judge can order the person to give his f*prints.

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7
Q

What are the 3 types of offense which a person can be charged?

A

1) Indictable
2) Summary conviction
3) Hybrid or dual procedure offence

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8
Q

What are the 2 reasons for taking involuntary f*prints?

A

1) For the purpose of identification (dead body)

2) Compilation of data on offender, to keep a criminal record : copy forwarded to Ottawa and an FPS # will be given.

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9
Q

What does voluntary taken prints mean?

A

That the person is willing to give his prints to the police for elimination purposes.

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10
Q

What was Sir Francis Galton convinced of?

A

That f*prints could be used for identification purposes.

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11
Q

What is minutia?

A

Tiny variations and irregularities within fingerprint ridges that are unique and identifiable (also know as ridge characteristics).

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12
Q

Who came up with a new classification system after Galton?

A

Sir Edward Henry

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13
Q

What is A.F.I.S.?

A

Automated fingerprints identification system

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14
Q

What are the factors affecting the condition of f*prints? (7)

A
  • Skin condition
  • Disease
  • Dryness of skin
  • Manual labour
  • Scarring
  • Reaction at the scene (nervous)
  • Contamination
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15
Q

What are the types of surface? (f*prints)

A
  • Porous/non porous
  • Hard/soft
  • Smooth/rough
  • Clean/dirt
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16
Q

What are the atmospheric conditions?

A
  • Temperature
  • Humidity
  • Wind
  • Dust
17
Q

Is it possible to tell the age of a f*prints?

A

No

18
Q

What are the 2 properties of f*prints that make them invaluable for identification?

A

1) Persistency (it stays the same) : formed before birth, remain the same, decompose after death.
2) Uniqueness : even in the case of identical twins.

19
Q

Explain the steps of the method in taking f*prints. (4)

A
  • Explain to the person how you are going to proceed.
  • Ask the person if they have any problem with their articulation.
  • If the person sweat too much, keep them clean and make sure they are dry before applying the ink.
  • Safety : wear gloves, put your weapon, pepper spray in a secure place (under lock & key)
20
Q

Which particular equipment does fingerprints need?

A

Forms. The RCMP provides the form C-216-CRIMINAL

21
Q

What are the 3 types of fingerprints and describe them?

A

1) Latent
2) Visible
3) Molded

22
Q

What can you do to make latent fingerprints visible?

A

To create contrast :

  • Dark surface = light color powder
  • Light surface = dark color powder
  • Multi-colored objects = fluorescent powder
23
Q

I am also known as ridge characteristics, who am I?

A

Minutia

24
Q

How can a positive identification be made?

A

It is based on the continuous agreement of ridge characteristics in sequence with no unexplainable differences.

25
Q

Name me different types of minutia. (4)

A
  • Ridge ending
  • Bifurcation
  • Island
  • Lake
26
Q

What are the 4 types of fingerprint patterns?

A

1) Arches
2) Tented arches
3) Loops
4) Whorl

27
Q

How many delta has an arche pattern?

A

No delta

28
Q

How many delta has a loop pattern?

A

One delta

29
Q

How many delta has a whorl pattern?

A

Two deltas

30
Q

What are the 3 conditions for fingerprints classification?

A
  • Deltas
  • Distance between the core and delta
  • FPS # + letter
31
Q

What is a Livescan?

A

Fingerprints machine

32
Q

Why do we have to take plain impression?

A

To see if a mistake was made. The right thumb matching with the good one on the slap (with every finger).

33
Q

According to the video, what were the first 2 units that have been called?

A
  • SIJ

- Blood spatter

34
Q

According to the video, what process was used to obtain fingerprints one the plastic bags?

A

Special powder (non-porous) crazy glue / sciano (fuming)

35
Q

What is poroscopy?

A

Identifier par les pores de peau et non par les empreintes.

36
Q

What does A.C.E.V. mean?

A

Analyse
Compare
Evaluate
Verify

CSI (1 decks)

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