No two fingerprints are identical, where each individual possessing a unique set of fingerprints. The pattern formations found on the different fingers of one hand also vary.
The distinctive marks located on the palm surface near the fingertips are acquired before birth. Initial development of the fingerprints occurs in the womb during the second trimester of pregnancy, as stated by Mayo Clinic.
One of the modern applications of using fingerprints to identify a person is in forensic science. Fingerprints that are discovered in a crime scene are lifted, analyzed and compared to the fingerprints of possible suspects to determine the perpetrator. However, this technique requires expertise and is often subject to human errors.