19. How do you preserve a print made from CH 6 Fingerprints- cyanoacrylate? 20. Who is John Dillinger and how did he alter Review Sheet his prints? 1. Who is “Smiling Gus” Winkler and how is 21. Can you permanently alter fingerprints? If he related to forensic science? yes, EXPLAIN! If no, EXPLAIN! 2. What are fingerprints composed of? 22. What is IAFIS? What does it stand for? How 3. What biological purpose do fingerprints do your prints get in IAFIS? have? 23. What does integrated mean? 4. Where, on the human body, can prints be 24. How reliable is fingerprint identification? found? 25. How long does it take to find a match in 5. Explain 3 ways a patent print could be left at IAFIS? a crime scene. 26. What does “visualize a print” mean? 6. What are latent prints? 27. What surface is ninhydrin used on? 7. Why don’t twins have the same fingerprints? Cyanoacrylate? 8. Choose: Dermis, epidermis or hypodermis 28. How does silver nitrate help visualize a a. Which SPECIFIC layer of skin are print? Explain the chemical reaction. fingerprints made in? 29. Explain the chemical reaction that occurs to b. Which layer contains blood vessels visualize a print using iodine on paper. and nerves? 30. Which chemical is the best for visualizing c. Which layer is considered connective prints on: tissue? a. Styrofoam? d. Which layer do you have to cut into b. Paper? in order to permanently alter a c. Leather? fingerprint? d. Plastic? 9. At what point during gestation are e. Metal? fingerprints formed? f. Glass? 10. Explain the process of how fingerprints are 31. Which is better magnetic powder or formed. charcoal? Give at least three reasons why 11. What percentage do the following one is better than the other. fingerprints occur? 32. When would you use fluorescent powder to a. Arches lift a print? b. Loops 33. Describe 3 ways skin can destroy prints c. Whorls when you are trying to lift prints off of a 12. Describe in your own words the direction of human body. the ridges so that a friend could correctly 34. Name 3 reasons why latent prints should be identify their own prints. (On Chart) taken BEFORE refrigerating a corpse. 13. What is the core? Delta? Ridge count? 35. Describe one new way forensic scientists are 14. Do people with an arch have a ridge count? improving the ability to identify people 15. Define minutiae. through the process of fingerprinting. 16. Define plastic prints. Give 3 examples of 36. What is the criminal master file? Who uses where you could find a plastic print. it? How does info get in the file? 17. Describe three different types of patent 37. Daubert’s standard means ____. prints that could be left at a crime scene. 18. How do you preserve a charcoal print? 38. List the 5 factors that must be considered in determining if methodology is valid with regard to the Daubert standard: 39. Why are lawyers challenging fingerprints as evidence in courtrooms? 40. Are fingerprints “infallible?” What does this mean? 41. Supreme Court declared that federal judges must determine the ______of expert testimony.

Do the following on each print: a. Label the specific type of print 44. b. Do a ridge count c. Label the core and delta d. Label 6 minutiae

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