Forensic science is a vital instrument for the investigation of crime and the administration of justice, providing crucial information about the evidence found at crime scene. A forensic scientist must be capable of integrating knowledge and skills in the examination, analysis, interpretation, reporting, and testimonial support of evidence.
Forensic scientists investigate crimes by collecting and analyzing physical evidence. Often, they specialize in areas such as DNA analysis or firearm examination, performing tests on weapons or on substances such as fiber, glass, hair, tissue, and body fluids to determine their significance to the investigation.
Forensic medicine is one of the largest and most important areas of forensic science. Forensic medicine has also become increasingly important in cases involving rape, murder, homicide, suicide and accidental deaths. Modern techniques use such specimens as semen, blood, and hair samples of the criminal found in the victim's bodies etc.