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  1. Paint transfer can provide
  2. Other pieces of evidence that may contain saliva, and require examination, are
  3. Microanalysis
  4. A sketch that is drawn to scale shows the objects with accurate sizes except
  5. Lifting a print is often a
  6. Use one or more of the following search patterns: (5)
  7. if a suspect or victim is near a piece of glass when it breaks, glass fragments may
  8. Dislodge the magazine and
  9. Do not attempt to reconstruct the items
    or process latent prints from the pieces before
  10. Always properly secure the
  11. Firearms
    Evidence
  12. Holding a flashlight to create side light and using a
    magnifying glass may help you
  13. Comparing the fracture sites of two or more parts of a broken, torn, or cut object and determining
    whether they were once whole can provide
  14. put the magazine and the
    ammunition in a
  15. If you need to take photographs of an injury to any external genital organs, have an officer of the
  16. Questioned
    Documents
    Evidence
  17. Crime laboratory experts in serology can identify these
  18. Follow these guidelines when dusting for and lifting latent prints:
  19. The person you are photographing has to be a
  20. A suspect does not have the right to
  21. Sometimes, soil from a crime scene attaches to a suspect's or victim's clothing, shoes, tires, or other objects, and the person transports it to
  22. Visible evidence can include
  23. • spiral search pattern:
  24. Fibers can come from
  25. When collecting evidence, wear
  26. There is a high likelihood of saliva being present in
  27. If packaged improperly, wet items will
  28. • pie/wheel search pattern:
  29. The relation that fiber evidence has to the victim, suspect, or the crime scene is crucial
  30. If a wooden object or other material contains an embedded bullet, do not
  31. Broken windows, torn screens, or other sharp
    edges may
  32. PPE will protect the
  33. Before placing the firearm in the box,
  34. Electronic
    Evidence
  35. Evidence markers
  36. Place the weapon in a firearm or
  37. Photograph bite marks
  38. Conduct an eTrace database search through the
  39. Dr. Edmond Locard (1877-1966), a pioneer in forensic science, formulated the fundamental principle of forensic science:
  40. Sometimes fibers transfer between the
  41. Never handle evidence with your
  42. Sexual assault cases may require an examination of
  43. Patent prints
  44. Elimination prints
  45. Sketches should include the statement
  46. Biological evidence left at crime scenes may contain
  47. You may need to collect the entire
  48. A few examples of evidence that you may find and collect at a crime scene are
  49. Experts can analyze the direction of blood spray or
    spatter to determine the type of
  50. • grid search pattern:
  51. When the inside of a vehicle is part of a crime scene, examine the
  52. Comparing and matching fragments from a broken piece of glass can establish a
  53. plastic print
  54. • strip/line search pattern:
  55. The job of a crime scene analyst is to
  56. This will tell you if the firearm is lost, stolen, or found?
  57. Biological
    and Touch
    DNA
    Evidence
  58. (person) Include the case number, location, date and time, and your name when submitting a
  59. The most common way to process latent fingerprints is by
  60. The crime laboratory can analyze the glass pieces and compare characteristics, such as
  61. The firearms section of a laboratory
    examines
  62. trace evidence
  63. The direction of force or the order in which glass is broken can determine on which
  64. At any crime scene, the victim and the suspect usually
  65. Never try to fit a suspect's tool
  66. The sketch should show,
  67. Trace Evidence
  68. Electronic Evidence
  69. Surface footwear impressions or tire prints can remain on
  70. wet evidence, such as items soaked with bodily fluids or living plant material, must either be
  71. • zone/quadrant search pattern:
  72. If you leave something out of a sketch, such as a window, a piece of furniture, or a light fixture, be prepared to explain the omission at the
  73. Additional information to include in the sketch:
  74. Apply the same photographic perspectives—overall, midrange, and close-up—when documenting injuries
    and evidence on
  75. Teeth can provide
  76. Latent prints
  77. A person can be a crime scene or part of a
  78. Chemistry or
    Toxicological
    Evidence
  79. Clear all bullets from the
  80. To avoid contamination,
  81. Place evidence collected for DNA analysis
    in its own,
  82. Tools used to gain illegal entry into buildings and safes can leave
  83. blood, saliva, urine, semen, perspiration, vaginal
    secretions, feces, or vomit, You may find this evidence at a:
  84. Fingerprints
  85. Impression
    Evidence
  86. DNA evidence
  87. personal protective equipment
  88. Use the identifying marks on the firearm to conduct an
  89. Analysts can examine fired bullets
  90. (diagrams and sketching) Include the case number, location, date and time, and your name when submitting
  91. Working edges of tools leave
  1. a change gloves between
    collecting each piece of evidence collected for DNA analysis.
  2. b hairs,fibers, clothing,paint chips,
    transfer evidence, glass, wood, soil, dirt
  3. c leave or take away some sort of evidence.
  4. d as soon as possible.
  5. e spot fiber evidence.
  6. f wood, tile, paper, or paint, or in dust,
    blood, or grease
  7. g help to document the relative positions of evidence items in the crime scene. Place evidence markers next to each piece of evidence within the crime scene after initially photographing the scene and developing your initial sketch.
  8. h photograph of a person
  9. i computers,cell phones, PDA, thumb drives, external hard
    drives, CDs, DVDs,VHS tapes, digital cameras, answering
    machines,digital recording devices
  10. j into a mark
  11. k firearms for function and safety.
  12. l crime scene.
  13. m dusting them with one of several types of powder, which
    develops the print and makes it visible. Use a fine brush to apply dust to the surface on which someone placed a
    print. Lift a found print from its original surface with clear or frosted tape, then attach it to a small note card.
  14. n weapon.
  15. o submitting them.
  16. p bruises, lacerations, broken bones, gunshot wounds, and trace or transfer evidence.
  17. q clothes of the victim and the assailant.
  18. r distinct marks on surfaces.
  19. s fingerprints, shoe prints, blood, fibers, hair, tool marks, paint scratches, broken glass,
    bodily fluids, controlled substances, electronics equipment and computers, firearms,
    broken or damaged materials, tire tracks, documents, and bones.
  20. t side of the glass the suspect stood, thus establishing the suspect's entry or exit path.
  21. u is the process of microscopically analyzing trace evidence, such as paint, glass, and cloth fibers, to determine a possible source or origin. Microanalysis can
    identify and compare other materials such as textile fibers, plastics, duct tape, lamp filaments, and fractured, torn, or cut items.
  22. v materials that could be transferred during the commission of a violent crime. These trace materials include human hair, animal hair, textile fibers and fabric, rope, feathers, soil, glass, and building materials.
  23. w carefully examine it to identify the manufacturer, country of origin, serial number, model number, and caliber.
  24. x evidence box;
  25. y allow fingerprint analysts to distinguish between prints belonging to either the victims
    and witnesses or the possible suspects. To make this distinction, take inked fingerprints from innocent parties,
    who may have been at the crime scene, in order to eliminate their prints from the scene.
  26. z attempt to remove it.
  27. aa NCIC/FCIC database check on the firearm.
  28. ab usually used outside by one person. The searcher begins
    at a certain point and walks in increasingly larger circles to the outermost boundary of the search area.
  29. ac chamber or cylinder
  30. ad clothing, carpet, rope, automobile carpeting, upholstery, or other common articles.
  31. ae color, density, thickness, and type of glass (tempered window, non-tempered, headlight, and bottle) to match and identify its origin.
  32. af fingerprints,tire tracks, footwear
    impressions,footprints, bite marks, tool marks
  33. ag damaged surface and submit it to the laboratory for comparison with the suspect's
    tool.
  34. ah separate container.
  35. ai body fluids and, if needed, conduct further
    testing using DNA analysis.
  36. aj another location.
  37. ak strong evidence in court.
  38. al are transferred from the friction ridges on fingers by a FOREIGN SUBSTANCE (not a body residue), like blood, paint, or dirt, and are
    readily visible.
  39. am used for vehicle searches, outdoors, or a large
    area. Divide the area into four different sections and search each using one of the patterns above.
  40. an evidence from contamination and you from exposure to dangerous substances.
  41. ao weapon, the direction of the attack, and the relative size of the attacker.
  42. ap refuse photographing injuries such as scratches from the
    victim or blood evidence.
  43. aq common origin and a relationship between the victim, the suspect, and the crime scene.
  44. ar "Every contact leaves a trace." Referred to as
    Locard's Exchange Principle, this contends that everyone who enters a crime scene will both bring something into and take something from it.
  45. as evidence in many cases.
  46. at blood, semen, saliva, bones, teeth, body tissues, hair, DNA,
    Touch DNA
  47. au ...
  48. av are among the most valuable types of physical evidence and one of the most common types
    of evidence you will recover at a crime scene. Although generally invisible to the naked eye, latent prints result
    from body residues left behind when the friction ridges of the hands or feet make contact with a surface.
  49. aw 1. Wear gloves to avoid contaminating the area with your own fingerprints. Be careful not to wipe possible
    prints off the surface.
    2. Hold a flashlight at an angle, and look for obvious signs of a latent print.
    3. Take your brush and lightly dab into the powder once you find a target area.
    4. Tap and twirl the excess powder off the brush in the jar of powder. Use it sparingly because it tends to
    get on everything. It is better to use too little than too much.
    5. Lightly brush from side to side, or swirl the brush, on the target area. If the powder adhered to the print
    is too thick, brush off the excess powder with a clean brush and adjust the amount of powder.
    6. When you find a print, apply the tape in the following manner:
    a. Place a suitable fingerprint card on a flat surface nearby so that it is ready for the print you lift with
    the tape.
    b. Turn under the end of the lifting tape to form a tab.
    c. Extend the tape to a distance long enough to cover the print.
    d. Place the rolled end of the tape just above the latent print, but keep it off the print.
    e. Make sure that you do not trap foreign matter or air bubbles under the tape.
    f. Smooth from the tabbed end of the tape back toward the rolled end or vice versa. Use your finger,
    pen, or another object to smooth out the tape and release any trapped air. It is the same basic
    process as putting a decal on a window. With time and practice, you will develop your own
    technique for applying the tape.
    7. Slowly lift the tape containing the developed prints from both ends, being careful not to touch the tape
    to another surface, such as your gloves.
    8. Carefully place the tape on the fingerprint card in the same way that you placed the tape over the latent
    print. Place the print in the designated place on the correct side of the card.
    9. On the back of the fingerprint print card, record the date, case number, the location within the crime
    scene where you retrieved the fingerprint and any other information your agency's policies and
    procedures require. Be careful not to damage the print.
    10. Follow your agency policies and procedures to submit print evidence.
  50. ax any ammunition.
  51. ay deposition or trial.
  52. az checks, bank statements, address books, wire transfers, credit cards, phone bills, photographs
    or cameras, photo copies
  53. ba suspect, witness, or victim of a crime to support taking a
    photograph.
  54. bb running the firearm serial number through FCIC/NCIC database
  55. bc is a MOLDED or IMBEDDED fingerprint created by touching an impressionable surface, such as wet paint or mud that you can easily see.
  56. bd bare hands.
  57. be DNA.
  58. bf room by room, the size and relationship of
    entrances, exits, and contents.
  59. bg Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) to determine the original owner of the firearm or the firearms dealer.
  60. bh gloves to prevent leaving your own latent prints. Take care to avoid smudging or smearing existing latent prints when handling and packaging evidence.
  61. bi "one shot" opportunity and should be treated as such.
  62. bj bite marks
  63. bk that they have all been reduced or enlarged by a certain
    amount relative to each other.
  64. bl dental evidence in the form of bite mark impressions that can lead to the identity of the
    suspect.
  65. bm usually used outside by several people. Divide the
    search area into lanes. Have one or more people search each lane by moving in both directions, examining all areas.
  66. bn PPE
  67. bo people!! Use a scale or identifier to document the extent of the injury.
  68. bp blood, saliva, urine, semen, perspiration, vaginal
    secretions, feces, or vomit
  69. bq separate container, then place them both in the firearm or evidence box.
  70. br seat belts, airbag, steering wheel, and other components for fibers.
  71. bs paint residue
  72. bt determine what evidence at the scene belongs to the criminal and not to the victims or witnesses.
  73. bu snag fibers during a subject's entry into or exit from a building.
  74. bv air-dried, packaged in breathable containers such as paper bags, or both.
  75. bw murder, aggravated battery, sexual assault, hit-andrun,
    and burglary scenes.
  76. bx compass direction, relevant items of physical evidence
    along with the location of such items indicated by measurements from at least two fixed points or other
    methods, and a legend of the symbols used to identify objects or points of interest on the sketch.
  77. by provide useful evidence in solving crimes such as a hit-and-run crash.
  78. bz diagrams.
  79. ca semen evidence.
  80. cb "not to scale"
    unless you are prepared to testify that every item is precisely drawn to scale on the sketch.
  81. cc strip/line search pattern: grid search pattern: pie/wheel search pattern: spiral search pattern: zone/quadrant search pattern:
  82. cd weapons, projectiles, gunshot
    residue, cartridge
    cases, tool marks, database
    information
  83. ce cigarette butts, drinking straws, soda and beer
    cans, masks, bottles, etc. Bite marks may also contain saliva.
  84. cf Patent prints, plastic print, Latent prints,
  85. cg contaminate the person's body, shoes,
    and clothing.
  86. ch cartridge cases, and shotgun shells to determine if the suspect's weapon fired them. They examine bullets recovered from a crime scene to identify the make and type of weapon involved. An analyst may also examine the crime scene for the presence of gunpowder and shot pellet spread to determine firing distance. Analysts can identify tool marks, aftermarket modifications, and serial number restoration
  87. ci same gender as the victim observe and photograph the injuries. It may be prudent to have a witness present
    when photographing these types of injuries.
  88. cj blood alcohol
    levels, drugs,
    poisons, etc
  89. ck entails dividing the area into a number of wedge-shaped
    sections, which are usually searched using the strip/line search pattern. Use this method for extremely large search areas.
  90. cl deteriorate to a point where they have no evidentiary value.
  91. cm often used indoors; a variation of the strip/line search
    pattern. Searchers overlap a series of lanes in a cross pattern, making the search
    more methodical and thorough