Unit 3 Fibers & Fingerprints FS

What are the three basic fingerprint patterns?

• Whirl, Diamond, Oval

• Arch, Zigzag, Swirl

• Loop, Triangle, Circle

• Arch, Loop, Whorl

What is the scientific basis for the uniqueness of fingerprints?

• Temperature of the hand

• Pattern of ridges and valleys on the skin's surface

• Number of freckles on the fingers

• Color of the skin

Tags

NGSS.MS-LS4-4

Discuss the role of fingerprints in criminal investigations and how they are used as evidence in court.

• Fingerprints are used to identify suspects and link them to the crime scene, serving as crucial evidence in court.

• Fingerprints are only used for identification and have no relevance in criminal investigations.

• Fingerprints are not admissible as evidence in court due to their unreliable nature.

• Fingerprints are often planted at the crime scene by the real criminal to mislead investigators.

What is the significance of minutiae in fingerprint analysis?

• Minutiae are irrelevant in fingerprint analysis

• Minutiae refer to the color variations in a fingerprint

• Minutiae are the unique ridge characteristics in a fingerprint

• Minutiae refer to the temperature variations in a fingerprint

What is the difference between visible, plastic and latent fingerprints?

• Visible fingerprints are left on a smooth surface when blood, ink, or some other liquid comes in contact with the hands and is then transferred to that surface. Plastic fingerprints are three-dimensional impressions and can be made by pressing your fingers in fresh paint, wax, soap, or tar. Latent fingerprints are not easily visible and require special methods to be visualized.

• There is no difference between visible, plastic and latent fingerprints

• Visible fingerprints are three-dimensional, plastic fingerprints are not easily visible, and latent fingerprints are left on a smooth surface when some liquid comes in contact with the hands

• Visible fingerprints are not easily visible, plastic fingerprints are left on a smooth surface when some liquid comes in contact with the hands, and latent fingerprints are three-dimensional

Most common type of fingerprint pattern: least common pattern

• loops : arches

• arches : loops

• whorls : loops

• loops : whorls

Fingerprint evidence can be collected by

• taking photos

• fuming

• lifting

• all of these

Identify this ridge characteristic.

• island

• bridge

• fork

• ridge ending

Tags

NGSS.MS-ESS2-2

Identify this fingerprint class (Left Hand & palm down).

• Radial Whorls

• Ulnar Loop

• Radial Loop

• Arch

Identify this fingerprint class.

• Double Loop whorl

• Tented Arch

• Plain Whorl

• Plain Arch