a hidden fingerprint made visible through the use of powders or other techniques
What is latent fingerprint.
100
Why was Mark Twain's book, "Pudd'nhead Wilson" mentioned in this chapter?
Lawyer Wilson used fingerprints to defend his client.
200
A triangular ridge pattern with ridges that go in different directions above and below a triangle
What is DELTA
200
Fingerprints consist of natural secretions of sweat glands. Name three secretions contained in a print.
What are water, oils and salts (and or dirt)
200
Describe the "fuming" technique of getting a fingerprint.
Sodium hydroxide and super glue........
200
a visible fingerprint that happens when fingers with blood, ink, or some other substance on them touch a surface and transfer the pattern of their fingerprint to the surface
What is patent fingerprint.
200
When do a person's fingerprints begin to form?
At about the 10th week of pregnancy.
300
The individual details within a fingerprint are called what?
What is MINUTIAE
300
A fingerprint pattern in which the ridge pattern originates from one side of the print and leaves from the other side
What is ARCH.
300
Explain why the four fingers are printed together when fingerprints are taken.
To show the length of the fingers relative to one another.
300
What are the 3 kinds of fingerprints found by investigators?
What is patent, plastic, and latent.
300
How long has the individual nature of fingerprints been known?
About 2000 years.
400
The raised lines of a fingerprint are called what?
What is RIDGES
400
What type of fingerprint does the highest percentage (65%) of the population have?
What is loops.
400
A high resolution print will show tiny white dots along the black lines. What are the white dots?
Pores in the skin.
400
a three-dimensional fingerprint made in soft material such as clay, soap, or putty
What is plastic fingerprint.
400
Why is it important to count ridge lines when noticing features in a fingerprint?
Because the same features can exist on two different prints, but in slightly different locations.
500
A form used to record and preserve a person's fingerprints
What is TEN CARD
500
A fingerprint pattern in which the ridge pattern flows inward and returns in the direction of the origin.
What is LOOP.
500
Technologies are being developed to use other physical features to identify people. Three were mentioned in the book. Name two.
Retinal patterns in the eyes, facial patterns and vein patterns in the palm of the hand.
500
What are the two ways a latent finger print can be lifted?
What is...
1. Dusting with powders
2. "fuming"
500
DOUBLE JEOPARDY!!!!!!!!!!!
Describe how John Dillinger tried to alter his fingerprint.
John Dillinger tried using acid to remove his fingerprints after hearing stories about how Cuban worker’s fingerprints began to disappear after being exposed to the chemicals in pineapples over time. It didn't work! His fingerprints came back.