Types of Prints
Distinguish between latent, patent and plastic fingerprints
Latent: invisible to unaided eye
Patent: visible
Plastic: print left in soft material/matter
What is the medical/scientific term for "skin"?
Epidermis
T or F. Identical twins will have identical minutiae in their fingerprint. EXPLAIN
False, Explanation may vary.
What type of evidence are fingerprints?
Individual
What musical did Tr. Daurio see this weekend?
Mamma Mia!
Which ridge pattern will have a core?
Whorls
What substances make up a fingerprint?
Water, oils and salts
What are minutiae?
ridge characteristics of fingerprints that individualize them
What is a ten card?
A card with all 10 fingerprints
What does IAFIS stand for?
Integrated Automated Fingerprint Identification System
What is a radial loop?
Loop that opens towards the thumb
Which component of a fingerprint is just below the skin's surface?
Epidermis
What percent of the population has arches?
5%
How many ridge characteristics would be necessary ro make a positive comparison with a latent print?
12
When do fingerprints develop on a human being?
In the womb
List the 4 types of whorls
Plain, central pocket loop, double loop and accidental
In which layer of the epidermis does the fingerprint form?
Basal layer
What percent of the population has whorls?
30%
What is the Bertillon system? Why do we no longer use it?
method of identifying criminals by physical measurements. We do not use the system because multiple individuals can share similar measurements.
What is the purpose of the IAFIS?
Database that keeps record of criminal fingerprints and criminal history
Using the whiteboard, draw an example of the three types of fingerprints.
Teacher will determine if answer is correct.
Using the whitebord, draw the different layers of the epidermis. Label the following: basal layer, sweat gland, pore, epidermis, subcutaneous tissue.
Teacher will determine if the answer is correct
Using the whiteboard, draw a bifurcation, dot and eye minutiae.
Teacher will determine if answer is correct
How do you lift fingerprints off a glass surface for analysis?
Use a feather brush to dust over the print and lift it with tape.
Using the white board, properly label the general ridge patters of all 10 fingers on the OLDEST person in your group.
Answers will vary. Tecaher will determine.