Term | Definition |
Invisible fingerprints | are not readily seen but can be developed through powders or chemicals. |
Inked fingerprints | The intentional recording of the friction ridge skin. Using black printer's ink and a fingerprint roller, the ridge characteristics of a particular individual, can be formally recorded
on a standard fingerprint card. |
Latent fingerprints | are impressions transferred to a surface, can be invisible or visible. |
Patent (plastic) fingerprints | one form of visible print, are impressions left in soft substances, prints are photographed not dusted. |
Whorls | consists of a series of almost concentric circles. |
A.F.I.S | automated fingerprint identification system - can digitize fingerprint information to produce inkless fingerprints. |
Discrepancy | a difference between two patterns, that can not be explained. |
Dactylography | the study of the science of fingerprints |
Core | is the approximate center of the finger pattern impression |
the opinion matching of a latent print to one person as its source to the exclusion of all other people in the world. | Individualization |
How many main fingerprint patterns are there? | 3 |
Loop patterns account for what % of all fingerprints | 60% or more |
Name the two types of loop patterns. | Ulnar loop and Radial loop |
Describe the loop pattern. | the ridges will flow in one side, recurve, (loop
around) touch or pass through an imaginary line drawn from the
delta to the core, and exit the pattern on the same side as it entered. |
This pattern consists of a series of almost concentric circles. | A whorl pattern |
There are four types of whorl patterns. Which is not a whorl pattern?
1. Plain whorl,
2. Central Pocket Loop whorl,
3. Double Loop whorl,
4. Accidental whorl
5. Single Loop whorl | Single Loop whorl |
Whorl patterns account for what % of all fingerprints | 25% or more |
Ridges flow in one side and flow out the
opposite side. What pattern is being described? | Arch pattern |
What are two types of arch patterns: | Plain arch and Tented arch |
No two fingerprints have ever been found to be the same.
T or F | T |
Fingerprints begin forming during the 12th week of gestation, and barring surgical or accidental removal of the finger
itself, will remain permanent for the life of the individual until the body decomposes after death.
T or F | T |