Fingerprints Flashcards
all basic information about fingerprints
1
Q
What is the least common fingerprint type?
A
Arch
2
Q
What is the most common fingerprint type?
A
Loop
3
Q
What percentage of people have an arch?
A
5%
4
Q
What percentage of people have a whorl?
A
25%
5
Q
What percentage of people have a loop?
A
70%
6
Q
What is dactyloscopy?
A
The study of fingerprints and their ridges/furrows
7
Q
What are minutiae?
A
Ridges that either come to an end or split in two
8
Q
How many minutiae does the average fingerprint contain?
A
150
9
Q
How many minutiae should a fingerprint contain before it is classified as a match?
A
12
10
Q
How many deltas are in a loop?
A
1
11
Q
How many deltas are in a whorl?
A
2
12
Q
What is Locard’s Exchange Principle?
A
A forensic belief that two objects in contact with each other transfer evidence
