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Fingerprint Identification

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  • how many points of fingerprint identification each and every state equation which can be said to be identical,in Idonesia to be said there are identical special line by 8 and 11 or 12 regular lines
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  • 1.
  • 2. FINGERPRINT COMPARISON
    ENDING RIDGE
    ARCH
    WHORL
    NON-IDENT
    RIDGE
    CORE
    BIFURCATION
    DOT
    DELTA
    LOOP
    IDENT
  • 3.
  • 4.
  • 5.
  • 6.
  • 7. FORMS OF IDENTIFICATION
    Facial Characteristics
    Voice Recognition
    DNA / Genetic Profile
    Osteology (bones)
    Odontology (teeth)
  • 8. FORMS OF IDENTIFICATION
    “Fingerprints”
  • 9. WHY FINGERPRINTS?
    Fingerprint evidence is the most positive investigative means for identifying people.
    Fingerprints form on a person before birth and remain unchanged until the body decomposes after death.
    Every fingerprint is unique!
  • 10. WHAT IS A FINGERPRINT?
    A fingerprint is a pattern of friction ridge details, that are comprised of ridges and valleys.
    A Ridge – is a high.
    A Valley – is a depression or low.
    Friction ridges are also found on our palms, feet and toes.
  • 11. Valley
    Ridge
  • 12. THE PATTERN
    The pattern is the unique characteristics of the ridges and valleys that make up the print. It is defined by the spatial relationship of lines with each other, their beginning and terminating points, and the unique pattern they make. The genes from our parents determine the general characteristics of the patterns.
  • 13. FINGERPRINT IDENTIFICATION
    1. What are fingerprints?
    Recorded impressions of the friction ridges located on the surface of the finger.
    2. What is the purpose of
    fingerprint identification?
    To establish the identity or non-identity of two sets of fingerprints.
  • 14. FINGERPRINT IDENTIFICATION
    3. What are fingerprint
    characteristics?
    These are also known as ridge detail, points of identification, or identifying characteristics.
    Ending Ridges
    Bifurcations
    Dots
    Enclosures
    Short Ridges
  • 15. FINGERPRINT IDENTIFICATION
    4. How are fingerprints compared?
    Fingerprints are compared by noting the ridge characteristics on two prints to determine whether or not they match.
    An identification is established when a number of these characteristics occupy the same relative position on the two prints.
  • 16. FINGERPRINT IDENTIFICATION
    How many points of identification
    (characteristics) are sufficient to
    establish an identification?
    A. No set standard number required.
    B. Left to each individual fingerprint examiner.
    C. Deciding factors:
    1. Clarity of impressions
    2. Uniqueness of formations
    Fingerprint examiners experience
    and ability
  • 17. POINTS OF IDENTIFICATION
    United States No Set Numbe
    England 16
    France 17
    Germany 12
  • 18. FINGERPRINT IDENTIFICATION
    Be extremely cautious!
    The integrity of the identification process depends on the fingerprint examiner devoting his or her attention to comparison work at all times.
    Always be certain that the fingerprints have been printed in the proper finger blocks.
    Be absolutely certain of your decision
    NOTE: As many as 150 ridge characteristic can be noted in the average fingerprint.
  • 19. Ending Ridge
    Enclosure
    Trifurcation
    “T” Junction
    Ridge Crossing
    Bifurcation
    Short Ridge
    Row of Dots
    Dot
    RIDGE CHARACTERISTICS
    COMMON
    OCCASIONAL
    RARE
  • 20.
  • 21. 1
    11
    10
    2
    9
    3
    8
    4
    5
    7
    6
    RIDGE CHARACTERISTICS MAGNIFIED
    Points 1, 2, 4, 5 are Ending Ridges
    Points 3 and 9 are Dots
    Points 8, 10, 11 are Bifurcations
    Point 6 is an Enclosure
    (ISLAND)
    Point 7 Short Ridge
  • 22.
  • 23. HOW TO COMPARE FINGERPRINTS
    • By noting the ridge characteristics in two fingerprint impressions to determine whether or not they match.
    • 24. An identification is established when a number of characteristics occupy the same relative position in the two fingerprint impressions.
    • 25. First observation should be the pattern type.
    Loops - 65%
    Whorls - 30%
    Arches – 5%
  • 26. HOW TO COMPARE FINGERPRINTS
    • Second observation should be to examine the line of flow.
    Right
    Left
    • Third observation should be fingerprint characteristics. Looking for the most obvious point(s) of identification (i.e., what captures your eye first).
  • HOW TO COMPARE FINGERPRINTS
    • Fourthobservation is to ensure the characteristics are in the same relative position.
    Count from one characteristic to another.
    Look for characteristics that are alike. Remember that inking, pressure,occupation,failure to roll fingerprints nail to nail and scars can change the appearance of characteristics.
  • 27. HOW TO COMPARE FINGERPRINTS
    • Fifth observation is to ensure that the fingerprints are in sequential order by checking the plain impressions with the rolled impressions.
    • 28. Never non-identfingerprints using onlyone finger. This will help eliminate errors.
    • 29. Flat or Plain impressions taken simultaneously give a true or better reading of how the ridges actually appear.
  • Not Fully Inked or Rolled
  • 30.
  • 31.
  • 32.
  • 33. FINGERPRINT COMPARISONPlain or Flat Impressions
  • 34. FINGERPRINT COMPARISON
  • 35. FINGERPRINT COMPARISON
  • 36. FINGERPRINT COMPARISON
  • 37. FINGERPRINT COMPARISON
  • 38. “THINGS TO REMEMBER”
    Look for theobviouscharacteristics
    Utilize theentirefingerprint
    Never base your decision on ascar
    Never non-ident byonefinger only
    Ensuresequenceis correct
    Unablewhen not 100% positive of decision
    Utilize existingenhancementtools
    Takesufficient time to process
    Avoiddistractions& beware ofcomplacency
    Maintaingoodwork habits
  • 39. QUESTIONS?

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