The Henry Classification System
Part 1 Fingerprint Classes it’s the L.A.W. What are the three classes of fingerprints?
Type
Frequency
Description
Deltas
Types
1.
1.
1.
2.
2.
2.
3.
4.
Using the Henry Classification System.
Describe the Who, What, Where, When, Why and the How about the development of the Henry
Classification System:
Label the number for each finger on the hands below according to the Henry Classification System.
Fingers are numbered 1-10. With the right thumb 1 and the left thumb 6.
Left Hand Right Hand
*Each finger has a certain number of points that can be earned. ONLY if that finger contains a ________ type
pattern are the points earned.
Hand
Finger
1
2
3
4
5
6
7
8
9
10
Point Value
16
16
8
8
4
4
2
2
1
1
To calculate your Henery Classification you take the ratio of the points from your even fingers compared to your
odd fingers. Remember the only prints that earn points are fingers with __________ type patterns
Henery Classification =
Points from Even Fingers +1
Points from Odd Fingers +1
Part 2 – Fill in the table below for the fingerprints shown.
Right
Finger Thumb
Left
Finger
Forefinger
1
2
3
Middle
4
Ring
5
6
Pinky
7
8
Print Type
Given Value
Points
Part 4- Calculate the fingerprint fraction for the fingerprints shown above. Show your work!
9
10