Forensic Dactyloscopy

Question 1

is KING

of Physical Evidence

Answer 1

Fingerprint

Question 2

the science that deals with the study of identification, classification and comparison of fingerprints

Answer 2

Dactyloscopy

Question 3

It is the reproduction on some smooth
surfaces of the pattern or design formed by
the ridges on the inside of the end joint of the
fingers or thumb, through the medium of ink
or any coloring substance capable of
producing visibility.

Answer 3

Definition Fingerprints

•As an IMPRESSION:

Question 4

It is the identification of person by means of the ridges appearing on the fingers, on the palms and on the soles of the feet.

Answer 4

Fingerprints

•As a SCIENCE:

Question 5

Principle of fingerprint

Answer 5

Individuality
Permanency
Infallibility

Question 6

IMPORTANCE OR VALUE OF FINGERPRINTS

Answer 6

• Prevent impersonation (changing personal data)
• Speedy identification of wrongdoer (falsification, forgery)
• Serve to give evidence (identification of criminals)
• Helps to identify victims of disasters, calamities, floods, etc.
• Identifies bodies whose cadaver are beyond recognition.
• Aids judiciary in penal treatment (fingerprinting of prisoners)
• Prevent criminal substitution of the newly born.

Question 7

•The impression of ten fingers of an individual person

Answer 7

Ten prints/standard fpc

Question 8

prints of those person who are legally arrested

Answer 8

Criminal Ten print Card –

Question 9

– prints of an individual who are seeking for clearance or for the process of elimination

Answer 9

Non criminal Ten print Cards

Question 10

TWO TYPES OF

FINGERPRINT IMPRESSIONS

Answer 10

Rolled impression

Plain impression

Question 11

ELEVEN (11) POINTS TO BE CONSIDERED IN TAKING LEGIBLE FINGERPINTS

Answer 11

1. Cleanliness of equipment.
2. The right kind and correct amount of ink.
3. Proper distribution of ink on the glass slab or inking plate.
4. The distance of the subject from the inking plate on the fingerprint card.
5. The advice of the operator to the subject to relax and never to aid the operator.
6. The pressure exerted must be slight and even the rolling be continuous movement including the lifting.
7. The nail of the fingers should be at right angle to the glass slab or to the card before starting the rolling, always roll the fingers until the other side of the nails is reached.
8. The inking and printing must always reached below the first joint of the fingers.
9. The thumb should be rolled towards the subject’s body and all other fingers away from the subject’s body.
10. While rolling the fingers, the subject’s hand should be held/controlled properly to prevent twisting.
11. Proper alignment.

Question 12

An epidermal hairless skin usually found in the palm and soles.

• This is where fingerprints are formed
• It is called “_____” because of their biological function to grasp and hold on to objects.

Answer 12

Friction skin

friction

Question 13

TWO COMPONENTS OF THE FRICTION SKIN

Answer 13

Ridge and furrow

Question 14

•– are tiny elevation or hill

Answer 14

Ridge

Question 15

Are the depressions or canal between ridges

Answer 15

Furrow

Question 16

Two layers of the skin

Answer 16

Epidermis

Dermis

Question 17

the upper pr outer layer of the skin

Answer 17

Epidermis –

Question 18

the lower or inner layer of the skin

Answer 18

•Dermis –

Question 19

Fingerprints found at the crime scene

known as chance impressions and means something hidden or concealed.
are those markings usually rather indistinct, left by the oily matters or perspiration exuded from the finger tips or palms upon any substances which the fingers/ palms may have touched.

Answer 19

LATENT PRINTS

Question 20

3 LATENT PRINTS

Answer 20

Invisible latent prints
Semi-visible latent prints
Visible latent prints

Question 21

Two methods of developing Latent prints

Answer 21

Physical method

Chemical method

Question 22

Types of Physical method

Answer 22

Brushing method

Rolling method

Question 23

Principle involved is that the developing reagents adhered or stick to the sweat that are present in the latent print.

Answer 23

Physical method

Question 24

Principle involved is that when the developing reagent comes in contact with the chemical composition of the sweat another chemical element is formed or there is a chemical reaction that takes place.

Answer 24

Chemical method

Question 25

4 Chemical method

Answer 25

Ninhydrin Acetone Solution
•Ninhydrin Benzene Solution
•Superglue (Gas Method)
•Emulgen Black Method

Question 26

THINGS TO BE CONSIDER IN SEARCHING, DEVELOPING AND LIFTING LATENT PRINTS

Answer 26

Searching

Developing

Question 27

Pioneer of Forensic Science “ Every contact leaves a trace”

Answer 27

Dr. Edmond Locard

Question 28

Searching

Answer 28

• Always use gloves
• Point of Entry
• Point of Attack
• Point of Exit

Question 29

Developing

Answer 29

• Attention should be given to objects, such as guns, door knobs, glasses, windows, papers, bottles, and protect and preserve intact of any latent print developed.
• Correct amount and quality of powder to be used. The purpose is to developed latent prints that can be classified, analyzed and identified.

Question 30

used in lifting latent prints

Answer 30

Lifting-Vinylon lifting tape or scotch tape

Question 31

1. Latent print

2. Where the latent print were collected

Answer 31

Fingerprint Crime Search Data Form

Question 32

ALTERNATIVE MATERIALS IN DEVELOPING LATENT PRINTS

Answer 32

Fingerprint Brush

Chicken feather brush

Question 33

ALTERNATIVE POWDER

Answer 33

Sigatol powder
Muffler soot
Ipa ng palay 
Charcoal ashes
Ashes of paper (miracle powder)

Question 34

alternative for aluminum powder

Answer 34

Sigatol powder –

Question 35

alternative for blk powder

Answer 35

Muffler soot –

Question 36

black powder

Answer 36

Ipa ng palay –

Question 37

alternative for aluminum powder

Answer 37

Charcoal ashes –

Question 38

(miracle powder) – alternative for aluminum

Answer 38

Ashes of paper