finger prints Flashcards
dactyloscopy.
examination of fingerprints
two main types of fingerprint
evidence that can be found in crime scenes:
Patent fingerprints
Latent fingerprints
Patent fingerprints(visiblefingerprints)
the easiest to
see, often caused by visible substances such as blood or
ink.
Latent fingerprints
invisible to the human eye and
often caused by sweat and oil on the surface of the
finger.
how are latent finger prints seen
dusting powder or chemicals over
them to gain the print.
3 main patterns of finger prints
Arch
Loop
whorl
Most common type of finger print
Loops(found in 60% of fingerprints)
order of most to least common figner prit
Loop
Whorl
Arches
Composites
Types of arches
simple arch
tented arch
types of loops
ulnar loop
radial loop
types of whorls
simple whorl
double whorl
Besides the shape of the finger print, how else can you identify a finger print
counting ridges from the delta to the core
2 types of ways fingerprints are collected form people
rolled
fingerprints
flat fingerprints.
ridge
black lines that form the patterns i the fignerpint
core
centre of the pattern
