Fingerprint Visualisation
Electronic databases
Not looking for perfect matches
Give close matches
Require human judgment
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Brandon
Mayfield
2
2004
Brandon Mayfield
An attorney in
Oregon, U.S.A.
Detained as a
material witness
Brandon Mayfield
3
2004
Madrid train
bombing
191 killed
Train after the bombing
4
Bomb fragment
Fingerprint
Partial fingerprint
on bomb
fragment
Partial match to
Brandon Mayfield
Mayfield s
fingerprint
5
Problem
Spain
Oregon
6
Bomb fragment
Only a partial match
to Brandon Mayfield
Print was a perfect match
to Ouhnane Daoud
Ouhnane Daoud
7
 Physical evidence cannot be wrong...
Only human failure to find it, study and
understand it, can diminish its value.
Edmond Locard (1877-1966)
8
Summary
1
History of fingerprinting
2
Theory behind fingerprinting
3
Principles of fingerprinting
4
Fingerprint patterns
5
Methods to visualise fingerprints
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