1. Be able to label the following: (cross section of hair)

Transcription

1 1. Be able to label the following: (cross section of hair) 2. Human hair has a medullary index of. 3. layer of the hair contains most of the natural pigment. 4. layer is the most different from one person to the next person. 5. is the portion of hair that can be tested for DNA. 6. is the outer layer of the hair that is composed of overlapping scales. 7. is the structure that forms the hair. 8. The is useful in determining which species a hair came from. 9. is a protein that comprises human hair. 10. The two types of fibers are and (which are also called manmade. 11. is the most common natural fiber. 12. Using an example, explain the difference between primary and secondary transfer. 13. Hairs and fibers are considered (class/individual)evidence. 14. hair commonly has a double medulla. 15. hair commonly displays buckling. 16. The difference between two individual hairs (from different people) is primarily the difference in. 17. List and define the three facets of guilt. Which is not required to try a case? (circle it) 18. Define the following and give an example of each: a. first degree murder b. second degree murder c. voluntary manslaughter d. involuntary manslaughter 19. is the gradual cooling of the body after death. 20. is the pooling of the blood due to gravity after death. 21. is the stiffening of the body after death. 22. The body cools approximately degrees per hour for the first twelve hours after death.

2 23. is the location where rigor typically begins 24. Rigor begins hours after death, is fully set hours after death, and disappears hours after death. 25. is a fluid that can be analyzed for potassium content to determine approximate time of death. 26. What is petechial hemorrhaging and was does it suggest about COD? 27. What is the sign of drowning as a cause of death? 28. List factors that would speed rigor mortis. 29. List and define the five manners of death. Circle the most common. 30. List factors that would affect how fast/slow a body would cool after death. 31. What is the best indicator of age in children? in adults? 32. How is gender from the skeletons of small children? 33. For the following mark if the skeleton is female or male. a. The sacrum is short and wide. b. The coccyx is smaller and flexible c. Pelvic bones are lighter and smoother d. The jawbone is larger and more square e. Parturition pits are present f. Femur meets pelvis at a sharp angle g. Subpubic angle is 88 degrees h. The forehead is vertically longer i. The skull is rounder j. The forehead protrudes further out (sloped). k. The skeleton is smoother l. Occipital protuberance is present m. Angle of jaw is 102 degrees 34. For the following questions mark if the skeleton is a child or adult. a. Skull sutures are not fused. b. Sternal ends of ribs are jagged. c. Microscopic examination reveals many small osteons. 35. The is the best bone for determining race. 36. was mislabeled by the government as a narcotic. 37. percentage of forensic testing is drug-related. 38. produces the strongest psychological dependence known. 39. is used to wean addicts off heroin. 40. Stimulant overdoses are characterized by what symptoms? 41. Depressant overdoses are characterized by what symptoms?

3 42. Narcotic overdoses are characterized by what symptoms? 43. What drugs are commonly associated with sexual assault? 44. is a common hallucinogen derived from a fungus. 45. A is a naturally occurring poison. 46. List the four routes of exposure to poison. Circle the fastest. 47. Explain the difference between deliberate and intentional exposure. 48. Explain the difference between acute and chronic exposure. 49. is the strongest known biological toxin. 50. This fatal toxin is derived from castor oil production. 51. Used in a terrorist attack in the early 2000 s, this toxin is 70% fatal if inhaled. 52. is the number of hours it takes to reach maximum blood alcohol concentration after drinking. 53. Is poisoning a common COD? What poisons are most commonly encountered in deliberate poisoning? 54. is the most common test for intoxication. 55. is the jerking of the eye as it moves sideways. (Commonly used as a test for intoxication) 56. was the first case of product tampering. 57. For the following mark, N (for narcotic), H (for hallucinogen), D (for depressant), S (for stimulant) Marijuana LSD Cocaine Alcohol Opium Oxycodone Methamphetamine Heroin Methadone Loratab PCP Morphine Valium Barbiturates Ecstasy 58. For the above drugs, provide the schedule number (Controlled Substances Act) 59. Test Name Substance tested for Color change Secondary Substance Secondary Color Change Marquis Orange brown Barbiturates None none Marijuana None none Van Urk None None Scott Test None none 60. Mark the following as class or individual evidence. a. The tire width on a tread b. The tread pattern c. The wear pattern on the tread d. Bite pattern in flesh e. Shoe size f. Tread pattern of a shoe g. Wear pattern on the tread of a shoe h. Bullet striations i. Shape of a tool in a door frame (dimensions) j. Defects caused by a chip in the tool

4 61. are the scratches left on bullets caused by the in the barrel. They can be helpful in identification. 62. is the bullet type used for practice rounds. It s designed to rip holes in paper target. 63. is the most common bullet shape and the easiest to load. 64. is the bullet type designed to mushroom on impact. 65. is the cheapest bullet composition. 66. bullets have a copper coating that improves exit velocity leaving the barrel. 67. List the four parts of a cartridge: 68. List and define the three types of tool marks. Explain which tools commonly make which marks. 69. is the mark on the bottom of a cartridge created when the cartridge is struck as the firearm is shot. 70. Wisdom teeth typical erupt between the ages of. 71. is a term used to describe fly larva. 72. is the time between death and discovery in which the body has been exposed to insect activity. 73. is the order in which organisms arrive to feed on the corpse. 74. List the stages of the blow fly life cycle in order. 75. and are the orders of insects most commonly found on dead bodies. 76. is the first organism to arrive at a dead body. 77. List factors that would speed insect decomposition: 78. List factors that would slow insect decomposition: 79. List the five stages of decomposition in order and describe each: 80. Fill out the following chart:

5 81. Calculate the time it would take a first instar to reach second instar at 60 degrees? 82. How long would it take a 1st instar to reach adult at 85 degrees? 83. If you needed eggs to change to 1 st instar larva in 14 hours at what temperature would you need to rear them? 84. is another word for red blood cell. 85. is another word for white blood cell. 86. is the marker found on the outside of cells. 87. are circulating in the bloodstream and will attach to antigens. 88. are used in clotting. 89. is the liquid component of blood. 90. is the codominant blood type. 91. is the recessive blood type. 92. Individual A antiserum B antiserum Rh antiserum Agglutination No Agglutination No agglutination Agglutination agglutination Agglutination No agglutination Agglutination No agglutination No Agglutination No agglutination No agglutination List the three categories of blood spatter and define each. 95. is the angle at which a blood droplet strikes the surface. 96. is the place where the blood spatter came from. 97. are small drops that come from a larger drop (called the drop) striking the surface.

6 98. The on blood droplets can be used to determine direction of travel. 99. Draw and label an example of low, medium, and high velocity spatter Draw and label a blood drop with an impact angle of 10 degrees, 45 degrees, and 90 degrees If a woman has a humerus, that is 32 centimeters long, calculate her height in centimeters. Assume: height (cm) = (length of humerus) 102. If a man is 172 cm, estimate the femur length in centimeters. Assume: height (cm) = (length of femur) 103. If stride length was.6 meters; calculate height. Assume: stride length (m) =.71(height in meters) The lambdoidal suture begins to close at, speeds up at, and is fully closed by The suture is closed by The suture is closed by 50. HOURS SINCE DEATH RIGOR (beginning, fully LIVOR (present, fixed, ALGOR (warm or cool) set, absent absent) Less than 2 Absent Absent Warm 2-4 Beginning Present Warm 4-6 Present Present Cool 6-11 Present Fixed Cool Fully Set Fixed Cool Disappearing Fixed Cool After 36 Absent Fixed Cool 107. Livor mortis begins about hours after death and is fixed (permanent) about hours after death.