Forensics: Fingerprinting

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19 Terms

1
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latent fingerprint

a hidden fingerprint made visible through the use of powders or other techniques

<p>a hidden fingerprint made visible through the use of powders or other techniques</p>
2
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physical developer

A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces.

<p>A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces.</p>
3
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Cyanoacrylate fuming

Chemical treatment that utilizes superglue vaporization to produce a permanent white print.

<p>Chemical treatment that utilizes superglue vaporization to produce a permanent white print.</p>
4
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ninhydrin

A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration

<p>A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration</p>
5
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whorl

a fingerprint pattern that resembles a bull's-eye

<p>a fingerprint pattern that resembles a bull's-eye</p>
6
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luminescence

light emitted by means other than burning, such as chemical or biochemical action or radiation

<p>light emitted by means other than burning, such as chemical or biochemical action or radiation</p>
7
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dermal papillae

Found in the upper layers of the dermis, they create your fingerprint pattern

<p>Found in the upper layers of the dermis, they create your fingerprint pattern</p>
8
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individual evidence

material that can be related to a single source

<p>material that can be related to a single source</p>
9
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visible fingerprint

the print formed when a fingertip is coated in blood, grease, or some other substance; it is visible to the naked eye

<p>the print formed when a fingertip is coated in blood, grease, or some other substance; it is visible to the naked eye</p>
10
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iodine fuming

a technique for visualizing latent fingerprints by exposing them to iodine vapors

<p>a technique for visualizing latent fingerprints by exposing them to iodine vapors</p>
11
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arch pattern

The fingerprint pattern that has ridges beginning at one side of the fingerprint and running completely to the other side of the fingerprint without a backwards turn.

<p>The fingerprint pattern that has ridges beginning at one side of the fingerprint and running completely to the other side of the fingerprint without a backwards turn.</p>
12
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loop pattern

The fingerprint pattern that contains ridge lines that enter on one side of the fingerprint, run towards the middle of the print, and then curve backwards to exit on the same side that they entered the pattern.

<p>The fingerprint pattern that contains ridge lines that enter on one side of the fingerprint, run towards the middle of the print, and then curve backwards to exit on the same side that they entered the pattern.</p>
13
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The digit number of the left index finger in the Henry Primary calculation

7

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The potential point value of the right thumb in the Henry primary calculation

16

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In the Henry classification system, point values are only included in calculations if ?

if the fingerprint pattern is a whorl

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the point values of the even numbered digits in the Henry primary calculation

are components of the numerator

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the point values of the odd numbered digits in the Henry primary calculation

are components of the denominator

18
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Exclusionary

relating to or characterized by the exclusion of something.

19
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plastic fingerprint

a three-dimensional fingerprint made in soft material such as clay, soap, or putty