Impression Evidence

Question 1

What can cause an impression?

Answer 1

Anything with a texture

Question 2

What is physics evidence?

Answer 2

Anything that is tangible.

Question 3

What are the two forms of analysis for physical evidence?

Answer 3

Identification and comparison.

Question 4

What are latent fingerprints?

Answer 4

Fingerprints that cannot be seen by the naked eye.

Question 5

What are visible fingerprints?

Answer 5

Fingerprints left in blood or paint.

Question 6

What are moulded fingerprints?

Answer 6

Fingerprints left in wax

Question 7

What are fingerprints made from?

Answer 7

Mostly sweat

Question 8

Where do friction ridges appear?

Answer 8

On the palms, soles, fingers and toes

Question 9

When are friction ridges formed?

Answer 9

Between the 9-10th week of fetal development

Question 10

What are fingerprints divided into? (3)

Answer 10

Loops, arches and whorls

Question 11

What to loops look like?

Answer 11

One or more ridges entering from one side and looping back on themselves.

Question 12

What is an ulnar loop?

Answer 12

A loop that enters and exits from the side of the pinky finger

Question 13

What is a radial loop?

Answer 13

A loop that enters and exits from the side of the thumb

Question 14

What is a delta?

Answer 14

A point of divergence

Question 15

What is the rarest fingerprint pattern?

Answer 15

Arches

Question 16

What do arches look like?

Answer 16

The enter one side of the finger, come to a point and exit on the other side

Question 17

What is the distribution of the fingerprint types?

Answer 17

Loops 60-65%, whorls 30-35% and arches 5%