DNA is used to determine paternity test, figuring out deformities in human beings, and even figuring out someone’s ancestry background. But, in the criminal justice field they use DNA for identifying criminals or victims with accurate biological evidence (2014). I do feel DNA testing should always be mandatory. I believe this because when DNA is collected during an arrest this could help take a criminal off the streets and placed in prison or jail. Every crime committed can provide the right data to convict a person or persons responsible for a crime or help free suspects that are wrongfully accused of a crime. Mandatory DNA testing is truly constitutional and does not violate the fourth amendment according to a 2013 decision in Supreme Court
