Fingerprints
Presentation
•
Science
•
9th - 12th Grade
•
Hard
Andrea Finley
Used 3+ times
FREE Resource
33 Slides • 0 Questions
1
As you work through each slide, answer the questions on your answer sheet.
2
What is the biological role of fingerprints?
1
3
At what age do fingerprints begin to form?
2
4
What are the 5 parts of your body that contain small ridges that form prints?
3
5
What causes fingerprint residue to be left behind at crime scenes?
4
6
Label and describe the two main parts of a fingerprint in the diagram to the right.
5
7
What are the 3 specific classes of fingerprints that are based on their pattern?
6
8
7
What percentage of people have each of the three fingerprint patterns?
9
8
Label the fingerprints to the right and explain the difference between the two.
10
9
How can you determine the difference between a radial and ulnar loop?
11
10
How many deltas can you find in the following fingerprint patterns: A: Double loop whorl D: Radial Loop
B: Tented Arch E: Plain Whorl
C: Plain Arch F: Ulnar Loop
12
11
What are the small ridges that make up a fingerprint and why are they important?
13
12
What are minutiae?
14
13
What are three types of prints that can be found at a crime scene?
15
14
Describe what a latent fingerprint is.
16
15
Describe how patent fingerprints are left at a crime scene and give an example.
17
What is an example of a plastic print that can be found at a crime scene?
16
18
Identify the fingerprint patterns below (L hand):
17
19
What is the point of the “twelve-match guideline” that experts use during fingerprint comparison?
18
20
What are 5 different types of minutiae patterns used (of the many) in fingerprint comparison?
19
21
Which letter from the diagram is a bifurcation? EXPLAIN.
20
22
What is a ridge count and how is it used to compare fingerprints?
21
23
What is the most common method used to develop latent prints on nonporous surfaces?
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24
What are 3 methods used to develop latent fingerprints on porous surfaces like paper or wood?
23
25
Which letter from the diagram is a short ridge? EXPLAIN.
24
26
Which letter from the diagram is a bridge? EXPLAIN.
25
27
Which letter from the diagram is a hook/spur? EXPLAIN
26
28
What are the three fundamental principles of fingerprints?
27
29
What is AFIS and why is it important?
28
30
Who were the two people who developed the classification system for fingerprints in the 1880’s?
29
31
Label the fingerprint patterns to the right:
30
32
Label the fingerprint pattern to the right as if it’s from the R and the L hand.
31
33
What type of print is left in the clay to the right? Explain.
32
As you work through each slide, answer the questions on your answer sheet.
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