By: Matthew Simms
Scope of Forensic Science
Forensic scientist's collects, and analyzes evidence, and gives expert testimony in court.
There are many forensic databases that are used to store evidence, some examples of forensic databases are CODIS, IBIS, PDQ, and IAFIS.
Crime Scene and Physical Evidence
Some common examples of physical evidence found at a crime scene are blood, hair, fibers, drugs, weapons, fingerprints, and bullets.
In order for crime scenes to be preserved, and recorded, the crime scene and the evidence must stay uncontaminated, and be collected safely.
Careers in Forensic Science
Drug chemistry involves identifying evidence thought to be a controlled substance.
Forensic biology is the analysis of bodily fluids, stains, and other bodily materials to help solve a crime.
Forensic toxicology is the use of scientific techniques to aid medical or legal investigation of death, involving poisoning, and drug use.
Latent fingerprints is the analysis of fingerprints at a crime scene in order to trace it to a single individual.
Microscopy involves a forensic scientist that analyzes hairs, fibers, and debris.
Polygraph analysis is the testing of the truthfulness of a subject.
Questioned documents usually work cases involving alleged forgery, blackmail, kidnapping, and death threats.
What is Forensic Science?
Forensic science is not done as fast as shown in television shows. As the television shows, try to make people believe that testing can be done that quickly.
- The term "forensic" is derived from the Latin word "forensis", which comes from the word "forum". A forum was a public place in Rome where the courts heard trials and orations were delivered.
- The best source of DNA is the cell nucleus. Red blood cells do not have a nucleus, so they are not a good source of DNA.
- Alec Jeffreys was the first to develop a technique to use DNA for identification purposes.
- Henry Jackson was a burglar in Great Britain. During a robbery in 1902, he placed his hand in wet paint, leaving his fingerprints. His case was the first in which an individual was convicted of a crime based on print evidence.
- The FBI originated from a force of special agents, and was created in 1908.