Principles of fingerprints

There are 5 basic principles of fingerprints that has been explained in this presentation.

1. PRINCIPLES OF FINGERPRINT Prepared by Rutuja Kakade Volunteer of AFRS

2. Contents Introduction of fingerprint. Types of fingerprint. Principles of fingerprint. Forensic Uses.

3. Introduction of fingerprint A fingerprint is a unique pattern of ridges, furrows, and minutiae on the skin of a person's fingers and thumbs. These patterns are formed during fetal development and remain largely unchanged throughout a person's life, making them an ideal means of identification.

4. Types of fingerprint There are three types of fingerprint. 1)Arch 2) Loop 3) Whorl

5. Principles of fingerprint 1) Individuality 2) permanence 3) Universality 4) Classifiable

6. Individuality

7. Permanence

8. Universality Fingerprint is universal in nature. Fingerprint has universal characteristic as fingerprint have their unique characteristics which are also known as individual characteristics including bridge, hook, Bifurcation, double bifurcation, trifurcation, etc Position of these individual characteristics are different in each fingerprint. This is universal evidence.

9. Classifiable We can classify our fingerprint into 1. Arch a. Plain Arch b. Tented Arch 2. Whorl a. Plain whorl b. Twinned Whorl c. Central Whorl d. Double Whorl e. Accidental Whorl 3. Loop a. Ulnar Loop b. Radial Loop

10. Forensic Significance of fingerprint principle It is useful for identification of fingerprint pattern. Forensic expert use this principles for found criminals. We use this principle for solving cases in which forensic expert found fingerprint pattern on crime scene. Due to individual characteristics of fingerprints, these can be used for identification of criminals. Fingerprint tells about the presence of suspects at crime scene.

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