Advantages and Disadvantages of Biometrics
Let us now examine the advantages and disadvantages of biometrics in two groups of applications: the commercial positive recognition applications that may work either in the verification or the identification modes, and the government and forensic negative recognition applications that require identification.
Advantages and Disadvantages of DNA Testing in Biometrics Solutions
The ongoing project to map the human genome affects all of us in several key areas. The first is DNA testing. This subfield of gene research uses tiny human tissue samples of 100–200 cells (for example, blood, hair, saliva) to identify DNA patterns . These samples are used to establish a person’s identity, for example, in I.
Tests for blood relationships such as parenthood
Identification of criminals (rapists, murderers)
Proving the innocence of people falsely accused of a crime. In this testing, the DNA pattern of a person’s hair, blood or saliva is matched with a similar DNA sample from a second person. For example, when establishing parenthood, DNA from the mother or father is matched with DNA from the fetus or child. When identifying criminals, DNA samples from the crime scene are matched with a suspect’s DNA.
Some benefits of DNA testing are clear and unquestioned. It is a key tool in the criminal justice system, helping courts to discover whether a person suspected of committing a crime is guilty or innocent and helping police to find criminals . It has even been used to prove the innocence of criminals on death row many years after a crime was committed. In addition, it is replacing genealogy and family trees as a method for determining ancestry . A famous case is the link that was established between the children of Sally Hemmings, a black slave, and U.S. President Thomas Jefferson. Finally, this test has also been used to establish the identity of dead bodies. One example of this occurred several years...
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