Exam (elaborations)
Unit 3_ Fingerprints
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Unit 3_ Fingerprints
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Unit3:
Fingerprints
Class
evidence
-
ANSWER-Materials
that
can
be
associated
with
a
group
of
people
Individual
evidence
-
ANSWER-a
kind
of
evidence
that
identifies
a
single
person
or
thing
3
classes
of
fingerprints
-
ANSWER-V isible
(patent),
invisible
(latent),
and
impressed
in
soft
surface
(plastic)
Ulnar
loop
(right
hand)
-
ANSWER-opens
toward
the
pinky
Radial
Loop
(left
hand)
-
ANSWER-opens
toward
the
thumb
Plain
Whorl
-
ANSWER-Deltas
are
on
the
same
plain
as
the
whorl
Central
whorl
-
ANSWER-Whorl
is
above
the
delta
Double
loop
whorl
-
ANSWER-Consists
of
two
separate
loop
formations
with
two
separate
and
distinct
sets
of
shoulders
and
two
deltas
Accidental
whorl
-
ANSWER-A
mix
of
different
patterns.
Cannot
be
classified
as
any
other
pattern.
Plain
Arch
-
ANSWER-No
delta,
gradual
ridge
line
Tented
arch
-
ANSWER-Arch
with
a
spike
in
the
center
Points
of
Similarity
-
ANSWER-When
minutiae
on
two
different
prints
match
Automated
Fingerprint
Identification
System
(AFIS)
-
ANSWER-A
computerized
system,
maintained
by
the
FBI,
that
stores
and
compares
millions
of
fingerprints
and
is
used
to
find
matches
for
identification
purposes.
Minutiae
Points
-
ANSWER-points
where
the
ridge
structure
changes
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