Fingerprint Analysis and Identification Systems

Which of the following substances can be used to develop latent fingerprints on non-porous surfaces?

• Iodine fumes

• Silver nitrate

• Ninhydrin

• Cyanoacrylate fuming

What does AFIS stand for?

• Automated Fingerprint Identification System

• Automatic Fingerprinting Information Service

• Advanced Fingerprint Information System

• Automated Forensic Identification Services

How does AFIS primarily match fingerprints?

• By comparing the overall pattern of the fingerprint

• By analyzing the minutiae points within the fingerprint patterns

• By matching the color of the fingerprint residue

• By the size and shape of the finger

What is a major challenge in lifting fingerprints from a crime scene?

• The fingerprints may be smudged or incomplete

• The fingerprints can be too large

• The fingerprints are always visible

• The fingerprints can only be found on metallic surfaces

What is the purpose of using a lifting tape in fingerprint collection?

• To protect the print before it is developed

• To enhance the visibility of the print

• To transfer the developed print onto a clear surface for analysis

• To measure the size of the print

In the context of AFIS, what is a 'hit'?

• An error in the system

• A successful match between a crime scene print and one in the database

• A rejected fingerprint submission

• A request for a manual review of fingerprints

What is the main reason for using black fingerprint powder?

• It sticks to latent oils and residues better than other colors

• It provides the best contrast on light-colored surfaces

• It is the only color that can be photographed accurately

• It is less expensive than other colors

Why might fingerprints not be found at a crime scene even if the perpetrator touched surfaces?

• The perpetrator wore gloves

• The surfaces were too rough for a print to be left

• The perpetrator had no fingers

• Both A and B are possible reasons

What is the primary purpose of using a fingerprint brush at a crime scene?

• To dust for fingerprints

• To clean the crime scene

• To collect DNA samples

• To paint over evidence

What is the role of a fingerprint examiner in a crime investigation?

• To dust for fingerprints at the crime scene

• To analyze and compare fingerprints found at the crime scene with those in the database

• To clean the crime scene

• To interview suspects