CI 5: Demonstrate methods of fingerprint development. EQ: What are the patterns and characteristics...
Transcript of CI 5: Demonstrate methods of fingerprint development. EQ: What are the patterns and characteristics...
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FingerprintsCI 5: Demonstrate methods of fingerprint
development.EQ: What are the patterns and characteristics of fingerprints?
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FingerprintAn imprint made by ridge patterns on the tip of a finger.
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dactyloscopyThe study of fingerprints
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anthropometryThe study of human body measurements
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LoopFingerprint pattern with one or more ridges entering from the side, curving, then going out on the same side entered
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DeltaTriangular area found in all loop and whorl patterns
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CoreArea found near the center of all loop and whorl patterns
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whorlFingerprint pattern with at least 2 deltas and a core
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archLeast common and simplest fingerprint pattern.
Arches have no delta or core. All ridges enter one side and exit the other.
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MinutiaeRidge characteristics used to describe fingerprints
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Plastic print3 D print made as indentation in soft material such as fresh paint, putty or wax.
Also called an indented or molded print
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Visible printFingerprint left by a finger that has touched blood, paint, ink, or the like.
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Latent printFingerprint made by the deposit of perspiration or body oils
Invisible to the naked eye until developed
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bifurcationsCommon minutiae, shaped like a 2-pronged fork.