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Fingerprint & Impression Analysis Final Assessment

 

Directions:

Answer the following questions.

 

1. How many individual minutiae does the average finger have?

A. 150

B. 1,500

C. 15,000

D. 150,000

 

2. Which of the following is the reason why footprints are NOT commonly used to identify individuals?

A. Footprints are not unique to individuals

B. Footprints are too easy to damage

C. Footprints are not commonly found on crime scenes and do not have a database of known prints

D. Footprints are too large and the analysis would take too long

 

3. How deep does an injury have to alter fingerprints?

A. 1 mm

B. 2 mm

C. 3 mm

D. 4 mm

 

4. The image is an example of which of the following?

Fingerprint where ridges still go from one side of the finger to the other.

A. Plain arch

B. Tented arch

C. Plain whorl

D. Double loop whorl

 

5. Which of the following is the third level of detail?

A. Ridge endings

B. Pattern of fingerprints

C. Flow and distribution of pores

D. Spurs

 

6. Using the word bank, label the type of impression.

Image of a fingerprint impression technique which are invisible prints caused by sweat and body oils left on a surface.             Image of a fingerprint impression technique made when an individual has come into contact with an opaque substance, such as paint, blood, grease, or ink, leaving behind a print made by the substance.             Image of a fingerprint impression technique which are rich impressions which have been made on a soft, malleable surface or object, such as putty, wax, or soap.

 

 

Latent

Plastic

Visible

 

7. Crime scene investigators believe the suspect left a fingerprint on a ransom note written on notebook paper. Which method should be used to visualize and collect the prints?

A. Photography

B. Powder

C. Super glue fuming

D. Ninhydrin

 

8. Crime scene investigators want to test a dry knife for prints. Select all of the following methods they could use.

Ninhydrin

Photography

Powder

Super glue fuming

 

9. Using the word bank, categorize the following substrate with the appropriate visualization technique.

Super Glue Fuming

Ninhydrin

 

 

 

·       Cardboard

·       Knife

·       Paper

·       Windowpane

 

10. Identical twins who have the same exact DNA will have different fingerprints.

A. True

B. False

 

11. Place the following events in the correct order.

__      The Western world began to study, categorize and document the uniqueness and permanence of fingerprints

__      Handprints used as evidence in Chinese criminal investigations

__      Law enforcement began using anthropometry to identify individuals

__      Book from Persia presents the possibility for using fingerprints as identification

 

12. When do fingerprints begin to develop?

A. Between 10 and 20 weeks after conception

B. Between 10 and 20 days after birth

C. Between 1 and 2 years old

D. Between 30 and 40 weeks after conception

 

13. Which if the following is NOT a characteristic of an arch pattern?

A. Rarest fingerprint pattern with only five percent of all fingerprints being arches

B. Ulnar arches open toward the little finger

C. Plain arches in which all ridges go from one side of the finger to the other

D. Tented arches where ridges still go from one side of the finger to the other

 

14. Match the following prints to their descriptions.

Description

Print

Rich impressions made on soft, malleable surface

 

Invisible prints caused by sweat and body oils

 

Made when an individual comes in contact with an opaque substance, leaving behind a print

 

 

Latent Print

Plastic Print

Visible Print

 

15. Evidentiary value requires taking which of the following into consideration?

A. Does the location of the print help establish the events of a crime?

B. Are there enough details included in the print to determine a match?

C. Was this print obtained legally?

D. All of the choices are correct

 

16. Why is chemical fingerprint collection preferred?

A. Prints can be more easily photographed

B. Utilize a wide range of wavelengths

C. Powder can contaminate the object and ruin the evidentiary value

D. Is very light and can be used on many different types of substances

 

17. A fingerprint found on a crime scene is meaningless without being able to compare it to a known sample to find a match.

A. True

B. False

 

18. The IAFIS system with compare the list of possible matches and determine the identity of the fingerprint.

A. True

B. False

 

19. Which of the following is NOT true about the manual method of collecting fingerprints?

A. Typically only used to quickly obtain prints with no access to a computer or scanner

B. Will soon be completely unnecessary as more agencies purchase specialized devices and scanners

C. Use ink to collect a rolled and flat impression

D. Can retrieve all potential matches in the field

 

20. Label the image with the appropriate minutiae.

Image of a fingerprint impression with labels from top down including: when a pattern, when a fingerprint line goes to the end, short bifurcations of a longer ridge, single ridge that divides into two ridges

 

Bifurcation

Ridge ending

Spur

 

 

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