HOW TO CHOOSE YOUR FINGERPRINT Erika Di Palma, Forensic Identification Specialist and CEO - My Own Fingerprint, Inc. Anthony Smith, Graphic Designer - My Own Fingerprint, Inc. To comprehend why friction skin is unique, one must look at biological uniqueness. MY WN SUB CATEGORIES 3 MAIN CATEGORIES *These non-technical definitions are meant for the average person to conceptualize. For a more complete definition of each pattern type (including descriptions of typelines, delta, core, etc.) please consult a fingerprint handbook or the FBI Science of Fingerprints. ARCHES Arches are the least common of the three general patterns and are subdivided into two distinctive groups. Occurs in only 5% of the population LOOP TYPES Plain Arch Ulnar Loop *These often resemble hills *These often look like a lake Tented Arch Radial Loop *These often resemble a tent *These often look like a lake Ridges enter the impression, rise in the center, and exit the opposite side of the impression LOOPS The most common of the three general patterns are Loops. You will see both right and left loops. ARCH TYPES Occurs in 60-65% of the population Ridges enter the impression, spike upwards in the center, and exit the opposite side of the impression WHORLS The second most common of the three general patterns are Whorls. Whorls are subdivided into 4 distinct groups. Occurs in 30-35% of the population FINGERPRINT.COM ™ Ridges enter from the little finger side, loop around and exit toward the little finger Ridges enter from the thumb side, loop around and exit toward the thumb WHORL TYPES FREQUENCY OF EACH PRINT TYPE PRINT TYPE A L ARCHES 5% ARCH TYPE WHORLS 30-35% P LOOP TYPE U P *These often look like a peacock eye Double Loop Whorl Accidental Whorl *These often look like the yin/yang symbol *These often look like exactly that, an accident (a very interesting one) Ridges form a loop pattern which go around the circle-like pattern in the center TENTED 40% R ULNAR 94% PLAIN 71% *These often look like a bulls-eye T PLAIN 60% WHORL TYPE Central Pocket Loop Whorl One or more ridges form a complete circle-like pattern around the center W LOOPS 60-65% Plain Whorl RADIAL 6% DL CPL A DOUBLE LOOP 13% ACCIDENTAL 3% CENTRAL POCKET LOOP 13% FRICTION RIDGE DEFINED Two separate loops are present in one impression - A raised portion of the skin found on the hands, fingers, toes, and feet of humans - This raised portion assists us in grasping objects and provide a positive means of identification A mixture of two different types of patters WHICH PATTERN DO YOU HAVE? Which finger is going to be your chosen one...