|
|
Forensic Science Forensic Science is the application of chemistry to the investigation of crime. It includes firearms and toolmark identification, forensic psychiatry and profiling, questioned document examination, criminal law, personal identification, forensic photography and crime scene processing. They analyze things like hair, fiber, body fluids, bullets, paint, soil, glass, shoe impressions, fingerprints, drugs, and plant material. Their work is not only limited to crimes against individuals, such as homicide, theft, fraud, and arson. Food adulteration, environmental pollution, use and distribution of unsafe chemicals, and dangerous working conditions are also some crimes against society that Forensic Chemists are involved in. DNA is used in Forensic Chemistry by retrieving the genetic code from evidence left on a crime scene. DNA is material that determines eye color, hair color, stature, bone density and many other human and animal traits. DNA is a long but narrow string-like object and is constructed like a ladder that has been grabbed at both ends and twisted, creating the double helix shape. There are four bases that form the rungs of the ladder: Cytocene, Guanine, Thiamine and Adnine.
|
