Fingerprinting is a very useful method in identification of a person. A fingerprint is unique to an individual and is permanent. The best method is DNA fingerprinting. One of the most common DNA fingerprinting procedures is RFLP (Restriction Fragment Length Polymorphism). Special enzymes are used to cut segments of a sample from which DNA is extracted. The procedure of RFLP focuses on repetitious sequences of DNA bases which vary greatly from individual to individual.