Deck 9: Forensic Light Sources

Question 1

the use of a forensic light source is a non-destructive process.

Answer 1

True

Question 2

Why is oblique lighting often the best way to see both latent and patent fingerprints on the surface of an object?

Answer 2

Light shone at a low angle allows the analyst to see details on the surface where light and shadow create contrast

Question 3

What is the first step for processing evidence?

Answer 3

Visual examination

Question 4

Why is it necessary to visually inspect any surface before processing it for latent prints?

Question 5

Shorter wavelengths of light produce less energy than longer wavelengths of light.

Question 6

What portion of the electromagnetic spectrum is visible as color to the human eye?

Question 7

What sources of incident light are used in the forensic laboratory?

Question 8

What unit of energy is emitted when light interacts with a surface?

Question 9

What is luminescence?

Question 10

How is fluorescence different from phosphorescence?

Question 11

What is incident light?

Question 12

What is reflected light?

Question 13

What is scattered light?

Question 14

What type of filter is used to view fluorescence?

Question 15

What is the proper personal protective equipment (PPE) for examining evidence with a forensic light source?

Question 16

What colored barrier filters are used with blue light? What colored barrier filters are used with green light?

Question 17

How are cyanoacrylate prints viewed with a forensic light source?

Question 18

What is RUVIS?

Question 19

How are fingerprints visualized with the RUVIS?

Question 20

RUVIS is a destructive process.

Question 21

What is the proper personal protective equipment (PPE) for examining evidence with a RUVIS system?