Forensics Fingerprints study guide

blues clues

1. Number of fingerprints stored in the Integrated Automated Fingerprint Identification System

47 million

2. Glands associated with hair follicles

Sebaceous

3. On the right hand, this loop pattern opens towards the left

ulnar loop

4. Minutiae pattern that looks like a "y"

bifurcation

5. Chloride from salt in sweat on a print combines with this to form dark colored prints

Silver nitrate

Fuming this chemical causes fingerprints to appear brown then quickly fade

Cyanoacrylate

A fingerprint pattern that resembles a bull's-eye

Whorl

Arch pattern with a splke in the middle

Tented arch

This whorl pattern is made up of any two loops combined into one print

Double whorl

10. A triangular ridge pattern with ridges that go in different directions above and below a triangle; found in all loop and whorl patterns

Delta

11. FBI's electronic storage and search program for fingerprints

IAFIS

12. A fingerprint pattern in which the ridge enters from one side, curves, then exits on the same side

Radial loop

13. Fingerprints typically form during this week of pregnancy

10th

14. A hidden fingerprint made visible through the use of powders or other techniques

Latent

16. Glands associated with the hands and feet

eccrine

17. The combination of details in the shapes and positions of ridges in fingerprints that make each unique; also called ridge characteristics

minutiae

18. A fingerprint that happens when fingers with blood, ink, chalk, grease or dirt on them touch a surface and transfer the pattern of their fingerprint to that surface

patent fingerprint

19. To be absolutely certain two prints match, they must have this many common minutiae

12

20. A fingerprint pattern in which the ridge pattern originates from one side of the print and leaves from the other side

whorl

21. a center of a loop or whorl pattern

core

22. These cells grow faster than the layers above and below so it collapses and folds to form the shapes of a fingerprint

basal cells

23. Fingerprints are this type of evidence

circumstantial

24. A three-dimensional fingerprint made in soft material such as clay, soap, paint, putty, or wax

plastic print

25. Time it takes AFIS to produce a list of potential matches from a fingerprint

2 hours

26. Super glue fingerprinting method

fuming cyanoacrylate to reveal latent prints

27. These appear white on a fingerprint image

valleys

28. Results in a Purple-blue print when amino acids found in sweat react with this chemical

ninhydrin

29. These appear dark on a fingerprint image

ridge

30. Method used to lift fingerprints after dusting

lifting tape/gel lifters

31. An impression left on any surface that consists of patterns made by ridges on the tip of a finger

fingerprint

32. The study of fingerprints

dactylogrtaphy

33. The maximum number of minutiae found to be shared between two different individuals

12

34. Method of fingerprinting still used today

henry galton

35. The outermost layer of skin

epidermis

36. On the left hand, this loop pattern opens towards the left

radial loop

37. You need to be able to identify fingerprints and minutiae patterns

hi