Fingerprint is fingerprint identification method, which uses fingerprints pressed by the texture of fingers and thumbs to identify people. Fingerprint is a reliable method to identify people, because the texture arrangement on each finger of each person is different and does not change with development or age. Fingerprints are used to reveal a person's true identity, although I deny that they are used under a pseudonym, or their appearance has changed because of age, illness, cosmetic surgery or accidents. Using fingerprints as a means of identification, called fingerprint identification method, is an indispensable auxiliary means in modern law enforcement.