Forensics Fingerprints

Apocrine gland

Sweat gland that produces sweat that contains organic molecules like fats and proteins

Cyanoacrylate

Superglue vapor to make latent (invisible) visible

Eccrine gland

Produce sweat onto the ridges to create a latent print

Henry system

Classification system using a formula of numbers and letters based on fingerprint patterns to find fingerprints

Hinge lifters

Tool to lift fingerprints from surfaces

Interoperability

Ability of different systems to “talk” to each other

Iodine fuming

Develops latent fingerprints by using iodine vapor to react with oils and fats in a print

Ninhydrin

Method to uncover latent fingerprints by applying the chemical ninhydrin creating a blue-purple color

Physical developer

Silver-based solution to develop latent fingerprints on surfaces like paper

Plastic print

Visible in a soft substrate (substance) like butter or play-doh, has 3 dimensional characteristics

Patent print

Visible print where a substance like blood, ink, paint, or dirt is transferred from a finger

Random match probability

Probability that another person, print, etc. selected at random would be the same as the one from the case

Ruhemann’s Purple

Fingerprints that have been developed by ninhydrin

Successive classification

Identifying patterns to come to an identification