Forensics Unit 7: Fingerprint Review

To be turned in for a grade before the test.

Write your answers on a separate sheet of paper & staple this sheet to your answers.

  1. What is the difference between a fingerprint pattern and a ridge characteristic?
  2. What are latent, patent and plastic prints?
  3. Sketch & label the different types of arches, loops and whorls.
  4. Identify the percentage of arches, whorls and loops see in human populations.
  5. What two items does a forensic examiner look for in a fingerprint? A delta and a _____.
  6. A loop that opens toward the thumb is called ______. A loop that opens toward the little finger is called ______.
  7. Silver nitrate was used to visualize fingerprint for the first time in what case? Refer to Case 4.1 (pg. 96).
  8. Which type of processing for latent fingerprints should be used first? Why?
  9. What would be the best way to visualize latent prints on the following materials: A) matchbook cover (cardboard), B) Popsicle stick, C) Vinyl upholstery, D) Cigarette butt, E) Broken bottle, F) Handkerchief, G) Toilet seat, H) Lightbulb
  10. Name the substance found in superglue that is used to make fingerprints visible.
  11. Even though the U.S. does not require a specific number, how many characteristics aretypically needed to make a positive comparison of fingerprints?
  12. Define anthropometry and identify the person responsible for developing this science.
  13. Amino acids are processed by what two types of chemicals?
  14. T/F? The imprint of a fingerprint consists of natural secretions of the sweat gland that are present in the friction ridge of the skin.
  15. 98-99% of a fingerprint is made up of _____. The remaining 1%-2% is made up of what 3 things?
  16. How long can fingerprints last at the scene of a crime?
  17. The oldest inked fingerprint document was found in what country? What was the time period?
  18. What is AFIS and who uses it?
  19. Name three areas of the body that contains friction ridges?
  20. Other than humans, what two animals have frictions ridges?
  21. Which part of the skin is responsible for creating fingerprints?
  22. When do fingerprints develop?
  23. How do you calculate the Henry System number? (which pattern is used?)
  24. Sketch & label all 12 minutiae.
  25. Whatchemicalsare used for processing latent fingerprints? What does each one react with and what color does each one develop the print into?

Forensics Unit 7: Fingerprint Review

To be turned in for a grade before the test.

Write your answers on a separate sheet of paper & staple this sheet to your answers.

  1. What is the difference between a fingerprint pattern and a ridge characteristic?
  2. What are latent, patent and plastic prints?
  3. Sketch & label the different types of arches, loops and whorls.
  4. Identify the percentage of arches, whorls and loops see in human populations.
  5. What two items does a forensic examiner look for in a fingerprint? A delta and a _____.
  6. A loop that opens toward the thumb is called ______. A loop that opens toward the little finger is called ______.
  7. Silver nitrate was used to visualize fingerprint for the first time in what case? Refer to Case 4.1 (pg. 96).
  8. Which type of processing for latent fingerprints should be used first? Why?
  9. What would be the best way to visualize latent prints on the following materials: A) matchbook cover (cardboard), B) Popsicle stick, C) Vinyl upholstery, D) Cigarette butt, E) Broken bottle, F) Handkerchief, G) Toilet seat, H) Lightbulb
  10. Name the substance found in superglue that is used to make fingerprints visible.
  11. Even though the U.S. does not require a specific number, how many characteristics are typically needed to make a positive comparison of fingerprints?
  12. Define anthropometry and identify the person responsible for developing this science.
  13. Amino acids are processed by what two types of chemicals?
  14. T/F? The imprint of a fingerprint consists of natural secretions of the sweat gland that are present in the friction ridge of the skin.
  15. 98-99% of a fingerprint is made up of _____. The remaining 1%-2% is made up of what 3 things?
  16. How long can fingerprints last at the scene of a crime?
  17. The oldest inked fingerprint document was found in what country? What was the time period?
  18. What is AFIS and who uses it?
  19. Name three areas of the body that contains friction ridges?
  20. Other than humans, what two animals have frictions ridges?
  21. Which part of the skin is responsible for creating fingerprints?
  22. When do fingerprints develop?
  23. How do you calculate the Henry System number? (which pattern is used?)
  24. Sketch & label all 12 minutiae.
  25. What chemicals are used for processing latent fingerprints? What does each one react with and what color does each one develop the print into?