Crime Scene Impressions

Question 1

What are the 5 types of crime scene impressions?

Answer 1

Latent
Patent
Deposit
Take-away
Plastic/mould

Question 2

What are the most common type of impressions found?

Answer 2

Deposit

Question 3

What are deposit impressions?

Answer 3

Consist of materials transferred from the friction ridges of the fingers to the surface of an item.

Question 4

What type of impression are deposit impressions mainly consisting of bodily secretions (typically)?

Answer 4

Latent impressions

Question 5

What type of impression are deposit impressions mainly consisting of foreign material (typically)?

Answer 5

Patent impressions

Question 6

What are latent impressions?

Answer 6

Composed of such small quantities that we cannot see them under normal circumstances
Development technique required in order to be visible.

Question 7

What are patent impressions?

Answer 7

Visible under normal circumstances and do not require any further development
Most often are 2D and made up of some foreign material

Question 8

What are take-away impressions?

Answer 8

When the friction ridge skin removes materials from a surface

Question 9

What are plastic or mold compressions?

Answer 9

3D patent impression typically only photographed, may be preserved with casting material