Question 1

What is the definition of a porous substrate?

Accepted Answer

a. Any substrate permeable to liquids and gases
b. Materials containing pores

Question 2

In what situation is physical developer the preferable method for processing porous items?

Accepted Answer

a. When the item has been wedded through exposure to the elements, garbage, kitchens, bathrooms, or humid conditions.
b. The amino acids and water-soluble compounds in the fingerprint residue dissipate

Question 3

Which component of latent print residues bind strongly to the cellulose fibers and are developed by chemical reagents?

Accepted Answer

Amino acids

Question 4

Name the three chemical reagents that react with amino acids on porous items?

Accepted Answer

a. 1,2-ind

Question 5

What does ninhydrin react with in the fingerprint residues?

Accepted Answer

The answer of What does ninhydrin react with in the...

Question 6

Which chemical reagent develops highly fluorescent fingerprints when applied to a porous item?

Accepted Answer

The answer of Which chemical reagent develops highly fluorescent fingerprints...

Question 7

1,2-indanedione processed fingerprints result in a fluorescent product.

Accepted Answer

A) True 
 B)False

Question 8

List three examples of porous substrates.

Accepted Answer

a. Paper
b

Question 9

How is ninhydrin applied to porous items?

Accepted Answer

a. Sprayin

Question 10

At what wavelength are 1,2-indanedione developed items visualized? What color barrier filter is used to visualize 1,2-indanedione developed items?

Accepted Answer

a. ~520 nm (green li

Question 11

What compound in fingerprint residue does physical developer react with?

Accepted Answer

The answer of What compound in fingerprint residue does physical...

Question 12

fingerprints on porous items developed with chemical reagents may be both visible and florescent.

Accepted Answer

A) True 
 B)False

Question 13

Which carrier solvent for ninhydrin has both of the following qualities: inflammability and low toxicity.

Accepted Answer

The answer of Which carrier solvent for ninhydrin has both...

Question 14

What is the process for developing an item with DFO?

Accepted Answer

a. Saturate the item
b. Dry th

Question 15

What is the process for developing an item with 1,2-indanedione?

Accepted Answer

a. Saturate the item
b. Dry th

Question 16

Why is it important to use the chemical reagents in a particular sequence?

Accepted Answer

The answer of Why is it important to use the...

Question 17

heat and humidity are used to speed up the development process when a porous item is treated with ninhydrin.

Accepted Answer

A) True 
 B)False

Question 18

Which chemical processing method is most successful for developing fingerprints on porous items?

Accepted Answer

The answer of Which chemical processing method is most successful...

Question 19

What is the name of the compound produced when ninhydrin reacts with amino acids?

Accepted Answer

The answer of What is the name of the compound...

Question 20

What is the recommended processing sequence for processing porous items for fingerprints?

Accepted Answer

a. Visual examination
b. Indan

What is the definition of a porous substrate?

In what situation is physical developer the preferable method for processing porous items?

Which component of latent print residues bind strongly to the cellulose fibers and are developed by chemical reagents?

Name the three chemical reagents that react with amino acids on porous items?

What does ninhydrin react with in the fingerprint residues?

Which chemical reagent develops highly fluorescent fingerprints when applied to a porous item?

1,2-indanedione processed fingerprints result in a fluorescent product.

List three examples of porous substrates.

How is ninhydrin applied to porous items?

At what wavelength are 1,2-indanedione developed items visualized? What color barrier filter is used to visualize 1,2-indanedione developed items?

What compound in fingerprint residue does physical developer react with?

fingerprints on porous items developed with chemical reagents may be both visible and florescent.

Which carrier solvent for ninhydrin has both of the following qualities: inflammability and low toxicity.

What is the process for developing an item with DFO?

What is the process for developing an item with 1,2-indanedione?

Why is it important to use the chemical reagents in a particular sequence?

heat and humidity are used to speed up the development process when a porous item is treated with ninhydrin.

Which chemical processing method is most successful for developing fingerprints on porous items?

What is the name of the compound produced when ninhydrin reacts with amino acids?

What is the recommended processing sequence for processing porous items for fingerprints?

Introduction

History

Physiology and Embryology

Fingerprint Patterns and Classification

Known Fingerprints

The Nature of Latent Prints

Biometrics: Livescan and Afis

Introduction to Processing Methods

Forensic Light Sources

Physical Processing Methods

Chemical Processing Methods: Nonporous Substrates

Chemical Processing Methods: Other Substrates and Matrices

Documentation

Crime Scene Processing

Fingerprint Comparisons: Ace-V Methodology

Fingerprint Comparisons: Point Counting, Error Rates and Statistics

Palm Print Comparisons

Courtroom Testimony

Filters

Exam 11: Chemical Processing Methods: Porous Substrates

What is the definition of a porous substrate?

In what situation is physical developer the preferable method for processing porous items?

Which component of latent print residues bind strongly to the cellulose fibers and are developed by chemical reagents?

Name the three chemical reagents that react with amino acids on porous items?

What does ninhydrin react with in the fingerprint residues?

Which chemical reagent develops highly fluorescent fingerprints when applied to a porous item?

1,2-indanedione processed fingerprints result in a fluorescent product.

List three examples of porous substrates.

How is ninhydrin applied to porous items?

At what wavelength are 1,2-indanedione developed items visualized? What color barrier filter is used to visualize 1,2-indanedione developed items?

What compound in fingerprint residue does physical developer react with?

fingerprints on porous items developed with chemical reagents may be both visible and florescent.

Which carrier solvent for ninhydrin has both of the following qualities: inflammability and low toxicity.

What is the process for developing an item with DFO?

What is the process for developing an item with 1,2-indanedione?

Why is it important to use the chemical reagents in a particular sequence?

heat and humidity are used to speed up the development process when a porous item is treated with ninhydrin.

Which chemical processing method is most successful for developing fingerprints on porous items?

What is the name of the compound produced when ninhydrin reacts with amino acids?

What is the recommended processing sequence for processing porous items for fingerprints?

Introduction

History

Physiology and Embryology

Fingerprint Patterns and Classification

Known Fingerprints

The Nature of Latent Prints

Biometrics: Livescan and Afis

Introduction to Processing Methods

Forensic Light Sources

Physical Processing Methods

Chemical Processing Methods: Nonporous Substrates

Chemical Processing Methods: Other Substrates and Matrices

Documentation

Crime Scene Processing

Fingerprint Comparisons: Ace-V Methodology

Fingerprint Comparisons: Point Counting, Error Rates and Statistics

Palm Print Comparisons

Courtroom Testimony

Filters