DNA In Crime Investigations

“In 1986 DNA was first used in a criminal investigation in england (hirby, https://www.thelawdictionary.com).” “One year later, DNA was first used in the USA in Florida (hirby,james https://www.thelawdictionary.com/).” “In 1985 a professor at the University Alee Jeffrey’s was able to validate the uniqueness of personalized DNA material in each person's skin, body fluids, blood, nails and hair (hirby, james https://www.thelawdictionary.com/).” Once DNA testing was used to convict criminals law enforcement and criminal evaluation laboratories saw DNA technology as a major aid in being able to isolate accused or alleged suspects. Before DNA was available to use in crime investigations the law enforcement depended heavily on fingerprints, blood,
(hirby james, https://www.thelawdictionary.com/).” “DNA analysis is widely applied to determine genetic family relations such as paternity, maternity, siblingship and other kinships (hirby james, https://www.thelawdictionary.com/).” Which means if someone has the DNA of a family member of a suspect the can perceive the person who committed the crime. This makes it easier for crime solvers to identify suspects because if you have a family members DNA you can have many other people's DNA. “A DNA database is the compilation of A Mitochondrial DNA concordance (hirby james, https://www.thelawdictionary.com/).” All DNA laboratories that are federally operated receive federal funds. All 50 states contain DNA databases. “The expansion of databases has increased the number of “cold hit” cases where no one is matched (smith collin, https://www.forensicmag.com).” Now that the law enforcement started using DNA databases is became easier to spot criminals. There are many different ways the crime solvers use DNA. “PCR is a technique used in molecular biology to amplify a single copies on a few of a segment of DNA across several orders of magnitude (hirby james, https://www.thelawdictionary.com/).” (PCR) polymerase chain reaction. The DNA profiling used today is called short tandem repeats (STR). Scientific name for DNA is Deoxyribonucleic