FINGERPRINTS
WHORL PATTERN
FINGERPRINT
FINGERPRINT patterns
Galton Characteristics
SHORT RIDGE/ ISLAND
DOT
FORK/ BIFURCATION
GALTON DETAILS
ENDING RIDGE
Which one is which? Human,
koala bear, chimpanzee?
3 types of fingerprint patterns:
whorl
loop
arch
Galton Details: used to aid in identification
- short ridge
- dot
- fork
- ending ridge

65 % OF THE POPULATION HAS THE LOOP
PATTERN.
 30 % OF THE POPULATION THE WHORL
PATTERN.
 5 % OF THE POPULATION THE ARCH
PATTERN IS DOMINATE.

STATISTICS

Chance of 2 people having the same prints : 1: 64
billion!!

YOU CAN OUT GROW YOUR SHOES BUT NOT
FINGERPRINTS

KOALA’S FINGERPRINTS CAN BE MISTAKENLY
IDENTIFIED FROM THAT OF A HUMAN BEING’S

AS HUMANS GET IDENTIFIED THROUGH THEIR
FINGERPRINTS, THE DOGS ARE BY THEIR NOSE
PRINTS.

THE FBI’S FINGERPRINT DATABASE IS THE LARGEST
IN THE WORLD.

The first people to be convicted of a crime using
fingerprint evidence was in 1905
FINGERPRINTS : FACTS
YOUR

FBI MAINTAINS A LIBRARY OF ABOUT 10% OF
THE UNITED STATES POPULATION. 60
MILLION SETS WITH 200,000 SETS BEING
ADDED DAILY.

FINGERPRINTING HAS BEEN USED AS EVIDENCE
SINCE THE LATE 19TH CENTURY.

THE FIRST PROFESSIONAL FORENSIC
ORGANIZATION WAS BEGUN IN 1915 AND THE
FIRST CERTIFICATION PROGRAM FOR
FINGERPRINTING BEGAN IN 1977.
FORENSIC USE OF FINGERPRINTS

FINGERPRINT IDENTIFICATIONS LEAD
TO MORE POSITIVE IDENTIFICATIONS OF
PERSONS WORLDWIDE DAILY THAN ANY
OTHER HUMAN IDENTIFICATION
PROCEDURE.
FINGERPRINTING.
A latent fingerprint is that type
of fingerprint that is accidentally done on any
surface. Often these types of fingerprints are
hidden or Invisible depending on the amount
of pressure, kind of surface and underlying
factors. These types of prints are considered
by forensic science experts as hard to
identify, for most are smudged, or distorted
in nature.
LATENT PRINTS:
TYPES OF FINGERPRINTS
TYPES OF FINGERPRINTS
PATENT PRINTS- THESE ARE THE MOST
COMMON TYPES OF FINGERPRINTS. THESE
PRINTS ARE MOSTLY CLEAR IN NATURE AND CAN
BE EASILY IDENTIFIED. THESE MARKS ARE
COMMONLY MADE IN THE DEPOSITS OF THE
CREASES DONE BY SEPARATE MATERIALS SUCH
AS INK, WATER OR OIL.

PLASTIC PRINTS: These types of prints
are also similar to the patent type only in
the manner of impression. Plastic prints
are those prints that are impressed or
deposited into a material which is capable
of retaining the impressed ridges. Ex.
print left after touch melted candle or
some prints left in grease on a car , or
gum.
Types of fingerprints