chapter 6

Question 1

portrait parle

Answer 1

a verbal description of a perpetrators physical characteristics and dress provided by an eyewitness

Question 2

anthropometry

Answer 2

a system of identification of individuals by measurement of parts of the body developed by Alphonse bertillon

Question 3

ridge characteristics (minutiae)

Answer 3

ridge endings bifurcations enclosures and other ridge details which must be matched in order for a common origin to be established

Question 4

latent fingerprint

Answer 4

print made by the deposit of oils on the fingers, invisible to the naked eye

Question 5

loop

Answer 5

fingerprint classification of ridge lines that enter one side of the pattern curve around and exit at that same side

Question 6

whorl

Answer 6

fingerprint classification that includes ridge patterns that are rounded or circular in shape and have two deltas

Question 7

arch

Answer 7

fingerprint classification of ridge lines that enter the print from one side and flow out the other side

Question 8

livescan

Answer 8

an inkless device that captures the digital images of fingerprints and palm prints and electronically transmits the images to an AFIS

Question 9

visible prints

Answer 9

a fingerprint made when the finger deposits a visible material such as ink, dirt, or blood onto a surface

Question 10

plastic print

Answer 10

a fingerprint impressed in a soft surface

Question 11

iodine fuming

Answer 11

a technique for visualizing latent fingerprints by exposing them to iodine vapors

Question 12

sublimation

Answer 12

a physical change from the solid to the gas phase

Question 13

ninhydrin

Answer 13

a chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration

Question 14

physical developer

Answer 14

a silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces

Question 15

superglue fuming

Answer 15

a technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors

Question 16

fluoresce

Answer 16

to emit light when exposed to light of a shorter wavelength

Question 17

digital imaging

Answer 17

a process through which a picture is converted into a series of pixels: manipulated by computer software that changes the numerical value of each pixel

Question 18

pixel

Answer 18

a square electronic dot that is used to compose a digital image

Question 19

the fingerprint classification system used in most English speaking countries was devised by

Answer 19

edward henry

Question 20

a permanent scar forms in the skin only when an injury damages the

Answer 20

dermal papillae

Question 21

___ are a reproduction of friction skin ridges

Answer 21

fingerprints

Question 22

the three general patterns into which fingerprints are classified are

Answer 22

loops, arches, and whorls

Question 23

approximately 5% of the world has the ___ fingerprint pattern

Answer 23

arch

Question 24

the pattern area of the loop is enclosed by two diverging ridges known as___

Answer 24

type lines

Question 25

if an imaginary line drawn between the two deltas of a whorl pattern touches any of the spiral ridges the pattern is classified as

Answer 25

plain whorl

Question 26

arches ____ type lines, deltas, cores

Answer 26

do not have

Question 27

the largest category (25%) in the primary classification system is ___

Answer 27

1/1

Question 28

fingerprints on hard and nonabsorbant surfaces are best developed by the application of ___

Answer 28

dusting powders

Question 29

___ vapors chemically combine with fatty oils or residual water to visualize a fingerprint

Answer 29

iodine

Question 30

chemical treatment with ____ visualizes fingerprints on porous articles that may have been wet at one time

Answer 30

physical developer

Question 31

a chemical technique known as ____ is used to develop latent prints on nonporous surfaces such as metal and plastic

Answer 31

superglue fuming

Question 32

high intensity light sources known as ___ are effective in developing latent fingerprints

Answer 32

alternate light source