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98 True/False questions

  1. substrate samples collected from the scene of a suspicious fire should be taken fromburned and unburned areas


  2. writing instruments includedots, bifurcations, islands


  3. you are using phenolphthalein to test a reddish brown stain for the presence of blood. When you put a drop of phenolphthalein on the swab with your sample, it turns pink immediately. This test is:false


  4. the majority of DNA isnon-coding


  5. fingerprints change over the course of a person's lifetimefalse


  6. it is possible to individualize trace evidence.False


  7. angel dust or PCP is what kind of drugdepressant


  8. collected writing samples should beauthenticated and from an appropriate time period.


  9. the fingerprint database is called:AFIS


  10. you have the same mitochondrial DNA as yournon-coding


  11. genetic differences among people that enable them to be distinguished are called genetic ___?exothermic reactions


  12. in order to have a flaming combustion, both the fuel and the oxygen must be in thepalms, fingers, and toes


  13. handwriting comparisons can be made usinghow letters are made, where pressure is applied, and connections between letters


  14. Which of the following is a search pattern?grid


  15. the polymerase chain reaction (PCR) is a process whicharches, loops, and whorls


  16. sliding a tool into the surface makes an indented tool markacid phosphatase


  17. common fingerprint minutiae includeAFIS


  18. individualizing friction ridge detail also exists on yourpalms, fingers, and toes


  19. the ACE-V method of print identification involvesborosilicate


  20. what is detrimental to the survival of DNA?preliminary, cross projection, smooth


  21. how many hours post mortem does rigor mortis become fully present?12


  22. how would you interpret the ABA test on the page?false


  23. photographs of crime secenes must include overall views, close ups, and _______?a 78 year old heart attack victim who died at the hospital


  24. the method for separating and concentrating ingnitable liquids that uses a syringe to collect samples is theheated headspace method


  25. this type of fingerprint is a three dimensional impressionAFIS


  26. a flammable liquid that was used to state a fire is calledexothermic reactions


  27. The national DNA database is calledthe inside diameter of a gun barrel


  28. what happened in the steven lawrence murder that generally cannot occur in the United Stateshe began a scholarship fund after winning a slander lawsuit


  29. Chemical reactions that give off heat are calledexothermic reactions


  30. The "Christmas Tree Stain" is a confirmatory test forsperm


  31. the three parts of the writing process that can yield useful information arewriting surface, writing instrument, and transfer medium


  32. which type of test is frequently done with recovered firearms to evaluate the possibility of accidental discharge?plastic


  33. blood spatter patterns can indicatedots, bifurcations, islands


  34. unknown fingerprints are entered into the data base as:forensic files


  35. there is a scientific way to precisely determine the time of deathfalse


  36. most reconstruction patterns are easily transported to the lab for further analysisforensic files


  37. a person's ____ is usually more distinctive than their normal handwritingCrimes against people


  38. questioned document examiners prefer to work with copies so they do not damage the original documentinvalid


  39. gunshot residue:analgesics


  40. which is the most abused drug on the worldanagen


  41. the process by which solid materials are decomposed by heat, forming smaller molecules that can support flaming combustion is calledalgor mortis


  42. which is NOT a variable to cinsider when examining blood patterns?borosilicate


  43. which of the following is not a hallucinogenic drug: marijuana, PCP, or LSDthey all are


  44. what can affect how you prepare to conduct a crime scene investigation?Crimes against people


  45. in forensic biology, screening testsmay give false positives


  46. when collecting document evidence, it is important to carefully protect the document to avoidloss of possible DNA, loss of possible indentations, loss of possible latent print evidence


  47. when a fracture line in glass hits a pre-existing fracture line it....stops


  48. toolmark examinations may provide the following informationthe kind of tool used to make the mark


  49. in forensic biology, confirmatory testscan determine a sample to the exclusion of all other possibilities


  50. the synthetic opiate we discussed in class that was unknowingly injected by drug users and caused near instant death wasfentanyl


  51. a swipe bloodstain pattern is the result ofa bloody object in motion contacting another clean surface


  52. the most common instrument used to give an indication of the type of accelerant used to start a fire isprecisely locate evidence


  53. the change in body temperature post mortem is calledalgor mortis


  54. It is not possible to examine a document to see what printer or copier it could have originated fromfalse


  55. the settling of blood in dependent areas post mortem is calledalgor mortis


  56. indented writings on evidence can be visualized with an instrument calledhow letters are made, where pressure is applied, and connections between letters


  57. a blood spatter pattern consisting of a large number of very fine, mist-like droplets indicates that the blood probably came from agunshot wound


  58. the buildup of lactic acid that causes muscle stiffness post mortem is calledan accelerant


  59. what happened to the initial suspect in the Yates murder case?he began a scholarship fund after winning a slander lawsuit


  60. drug dependency is subdivided into two categoriesanalysis, comparison, evaluation, and verification


  61. the rough sketch that is usually prepared at a crime scene is used toprecisely locate evidence


  62. you should only document what you seemtDNA only


  63. in a strand of DNA, cytosine (C) complementary pairs withcan determine a sample to the exclusion of all other possibilities


  64. screening tests for semen are based on detecting the enzymeethanol


  65. Which crimes do we place more investigative emphasis on?borosilicate


  66. What anticoagulant compound was found in blood samples in the OJ simpson case?invalid


  67. Y-STR tests are designed to specifically identifymale DNA profiles


  68. a substrate control sample helps to detectfalse


  69. the fire triangle includes heat, fuel, and _____?oxygen


  70. crime scene documentation methods do not include:non-coding


  71. gunshot residue is characterized by the presence of the elementsfalse


  72. types of crime sketches includenon-coding


  73. shed head hair hasanalgesics


  74. Wet blood stains should be collected byswabbing


  75. which is not a growth phase of hairanagen


  76. The lowest temperature at which there is enough vapor to be ignited is called thelivor mortis


  77. which case does not generally require an autopsy?borosilicate


  78. chemical methods for the development of latent fingerprints includeexothermic reactions


  79. narcotic drugs areanalgesics


  80. natural variation in a person's handwriting is ___ when compared to the variation between individualsalways less


  81. pushing a tool into the surface makes a striated tool markanagen


  82. the caliber of a weapon isthe inside diameter of a gun barrel


  83. gunshot residue (GSR) testing can be difficult to perform because...GSR particles do not travel far, can be washed off and only last a few hours


  84. there is a useful confirmatory test for the presence of salivafalse


  85. class characteristics of a firearm detectable from a fired bullet includethe direction of the twist of the barrel of the gun


  86. which is not a type of glass discussed in class?a 78 year old heart attack victim who died at the hospital


  87. the depressed helical grooves in a bullet are calledland impressions


  88. the four components of a firearm cartridge arethe primer, the propellant, the cartridge, and the barrel


  89. alcohol is an example of amtDNA only


  90. according to Ms. Clark's lecture, what body part is often missing from a body found in the wild?acid phosphatase


  91. the decomposition of blood in subcutaneous blood vessels causes an artifact calledmarbling


  92. the basic fingerprint class patterns are:arches, loops, and whorls


  93. which is not one of the categories of patters we discussed in chapter 4individualizing, reconstruction, sequencing. and these are all patters for analysis


  94. according to lecture, what is the first thing a first responder should do at a major crime scene?an accelerant


  95. the point of origin of a fire can often be determined by examination of burn patters in what pattern?a vee shape


  96. this is not a fundamental principle of fingerprintingfingerprints are formed when someone is about five years old


  97. the ______ the droplet, the ______the force that was used to create the spatterinvalid


  98. Crime scene processing is the same as crime scene investigation.location, weather, time of day