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The ultimate matching of two fingerprints as belonging to the same individual is based on :

  • A.Comparison of number of triradii and core type
  • B.Comparison of pattern types
  • C.Comparison of ridge counts
  • D.Comparison of minutiae or ridge characteristics

Answer: D

The final match rests on the comparison of minutiae or ridge characteristics.

Pattern type (loop, whorl, arch), ridge counts and triradii are class characteristics: they let examiners classify and file prints and exclude non-matching ones, but many people share them.

Identification of an individual depends on the minutiae (Galton details), such as ridge endings, bifurcations, dots, islands and enclosures, and on their type, position and relationship to one another. Because these details are unique and permanent, agreement in minutiae with no unexplained difference is what establishes that two prints come from the same finger.

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