Fingerprints are formed before birth, grow with the growth of hands and help in identification. Let's learn some basic facts on fingerprints: Fingerprints come out from the interior fleshes of the skin. Even Siamese twins have varying fingerprints. Loop is the most common fingerprint. 60% palms have such pattern. The other patterns are Whorls, Arches, and Accidentals. An important means of examining fingerprints is using their "Class Characteristics". Our fingers are covered in skin pores which produce oils and sweat detected by good old fingerprint powder. An undetected fingerprint is termed as "latent". The Laser helps in obtaining fingerprints from human bodies. Identification of criminals is the most common use of fingerprints and computer database has actually helped in this goal.