Forensics Final

Front 1

_______ are a reproduction of friction skin ridges found on the palm side of the fingers + thumb

Back 1

Fingerprints

Front 2

The first two fundamentals of fingerprints are _______ and ________

Back 2

Permanent & Unique

Front 3

_____ and _____ are the two LAYERS of friction skin

Back 3

Dermis and Epidermis

Front 4

A _______ ________ is a fingerprint deposited on a surface that is not visible to the naked eye

Back 4

Latent Fingerprint

Front 5

Fingerprints form on a fetus _____

Back 5

3 months after conception

Front 6

Three kinds of crime scene fingerprints are

Back 6

Latent

Plastic

Visible

Front 7

A

C

E

V

Back 7

A- Analyze (determine if the print is of value)

C- Compare (look at general pattern, ridge flow, points of identification

E- Evaluate your findings (ID/NO ID)

V- Verify have the print verified by an independent examiner

Front 8

Black powder adheres to ________

Back 8

Perspiration

Front 9

The most common fingerprint pattern is the ____

Back 9

Loop

Front 10

___% of fingerprints types are arches

Back 10

5%

Front 11

________ are the simplest of all fingerprint patterns, formed by the ridge entering from one side of the print and exiting on the opposite side

Back 11

Arches

Front 12

AFIS stands for

Back 12

Automated fingerprint identification system

Front 13

When using AFIS a ______ _____ makes the final verification of a prints identity

Back 13

Fingerprint expert

Front 14

_____________ __________ and _________ are two procedures for developing prints from nonabsorbant surfaces

Back 14

Cyanocrylate processing and ninhydrin

Front 15

The first thing that the criminalist must do after visualizing a print, but before making any further attempts at preserving it is to ___________

Back 15

Photograph it

Front 16

If an investigator finds or develops a fingerprint on a small object, such as a soda can, the best practice would be to

Back 16

Preserve the fingerprint on the can without destroying it

Front 17

The ____, ____, and the _____ are three layers of the hair shaft

Back 17

Cuticle, cortex, medulla

Front 18

The scale pattern of the cuticle is an important feature for characterizing _____ hair

Back 18

Animal

Front 19

The cortex derives its major forensic importance from the fact that it is embedded with the pigment granules that give hair its color

Back 19

Study it all

Front 20

In comparing hairs the criminalist is particularly interested in matching ____, _____, _____

Back 20

Color, Length, diameter

Front 21

___________ is a question that _____ be answered with a microscopic examination of hair

Back 21

Whether the person is M or F, CANNOT

Front 22

______ _______ ________ are most likely to provide useful DNA evidence at a crime scene

Back 22

Forcibly removed hairs

Front 23

Hairs from different parts of the body _____ possess the same physical characteristics

Back 23

DONT

Front 24

____ and _____ hairs are most often used for hair comparison

Back 24

Head and pubic

Front 25

In criminal cases paint evidence is most frequently encountered in __________ and ________ investigations

Back 25

Hit and run/ B&E

Front 26

Manufacturers apply a variety of coatings to the body of automobile. This adds significant diversity to an automobile paint and contributes to the forensic significance of automobile paint comparisons

Back 26

Study all

Front 27

A thorough comparison of paint must include a chemical analysis of ____, ____ _____

Back 27

Pigment, binder application

Front 28

When the investigator handles the collection of trace paint evidence left on a tool they should

Back 28

Package the tool with the paint on it for examination

Front 29

_____ is the main ingredient in glass

Back 29

Sand

Front 30

When there have been successive penetrations of glass, it is frequently possible to determine the sequence of impact by observing the existing fracture lines and their points of termination. A fracture always terminates at an existing line of fracture.

Back 30

Study all

Front 31

To lift a fingerprint, powder is applied to the print, and the surface containing the print is covered with the adhesive side of the tape. When the tapeis pulled, the powder is transferred to the tape. Then the tape is placed on a properly labeled card that provides a good background contrast with the powder. This procedure is used when fingerprints are found on large/immovable objects

Back 31

Study all