Probability Review - Fingerprints, hair, & fiber 1 This figure was used to label_______________. A B C D 2 The pattern in this figure is a ________________. (right thumb) A B C D 3 Loops Arches Whorls Minutiae radial loop ulnar loop whorl arch The pattern in this figure is a _____________. A B C D loop whorl arch tented arch 3/5/2012 7:19:41 AM Page 1 Probability Review - Fingerprints, hair, & fiber 4 The pattern in this figure is a ________________.(right thumb) A B C D 5 Cuticle pattern? A B C 6 ulnar loop radial loop arch whorl coronal spinous imbricate Cuticle pattern? A B C coronal spinous imbricate 3/5/2012 7:19:41 AM Page 2 Probability Review - Fingerprints, hair, & fiber 7 Cuticle pattern? A B C 8 The FBI's database used for storing fingerprints is A B C D 9 ulnar plain radial accidental A fingerprint left on a piece of paper is an example of a(an) A B C D 11 USDA IBIS IAFIS CODIS A loop that opens toward the pinky is called a(an) A B C D 10 coronal spinous imbricate visible print latent print plastic print invisible print The minutiae at the center of this print pattern is called a A B C D delta core loop whorl 3/5/2012 7:19:41 AM Page 3 Probability Review - Fingerprints, hair, & fiber 12 All fingerprint patterns have a triradius also known as a delta. A B 13 Questioned hairs must be accompanied by an adequate number of control samples from A B C D E 14 animal hair (other than human) synthetic fiber human hair natural fiber How could you tell that the mystery hair was a synthetic fiber?` A B C D 19 fabric, fiber, filament fiber, filament, yarn filament, fiber, fabric thread, yarn, fabric The mystery hair fiber in the hair analysis lab was a(an) A B C D 18 True False The process to make a textile is (in order) A B C D 17 wool, rayon, silk linen, acetate, cotton silk, cotton, cashmere jute, rayon, wool The secondary Henry Classification is used to calculate the probability of the frequency of each fingerprint pattern. A B 16 the victim possible suspects others who may have deposited hairs at the scene A and B A, B, and C Some examples of natural fibers are A B C D 15 True False Because it was made up of filaments. Because its medullary index was > 1/3. Because it had no pigment. Because it was very thin. Hair may give a false positive because hair collects metabolites. A B True False 3/5/2012 7:19:41 AM Page 4 Probability Review - Fingerprints, hair, & fiber 20 An exemplar is a sample of an unknown origin. A B 21 Cross section A B C 22 Asian, Native American European, Mexican or Middle Eastern African Cross section A B C 23 True False Asian, Native American European, Mexican or Middle Eastern African Cross section A B C Asian, Native American European, Mexican or Middle Eastern African 3/5/2012 7:19:41 AM Page 5 Probability Review - Fingerprints, hair, & fiber Answer Key : Probability Review - Fingerprints, hair, & fiber Question: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 3/5/2012 7:19:41 AM Answer D B B C A C B C A B B B E C A C B C B B C A B Page 6