The science of the fingerprint was discovered in the 19th century, and the fingerprint is composed of prominent lines in the skin complex bordering on depressions. The prominent lines rise over the pores of the pores. These lines continue and branch out and branches branch out to take in the end - in each person - It has been shown that the fingerprint can not match and resemble two people in the world, even in identical twins that are of one ovum. The embryo is formed in the fetus in the fourth month. The fingerprint remains constant and distinct throughout its life. Never match; D is conclusive evidence of the character of the human being and used in all countries of the world, and rely on those who are investigating criminal cases to detect criminals and thieves. This may be the secret that Allah has designated - the blessed and exalted - for which the two sons. In this, the scholars say: "God mentioned the sons to guide us to his great power, where he was mysteriously deposited in the fingertips, which we call fingerprints."