The term forensic
science involves forensic (or forensis,
in Latin), which means a public discussion or debate. In a more modern context,
however, forensic applies
to courts or the judicial system. Combine that with science, and forensic
science means applying scientific methods and processes to solving crimes.
From
the 16th century, when medical
practitioners began using forensic science to writings in the late 18th century that revealed the first
evidence of modern pathology, to the formation of the first school of forensic
science in 1909; the development of forensic science has been used to uncover
mysteries, solve crimes, and convict or exonerate suspects of crime for
hundreds of years.
The
extraordinary scientific innovations and advancements in forensic science have
allowed it to become a highly developed science that involves a number of
disciplines and thousands of forensic scientists specializing in everything
from DNA and botany to dentistry and toolmarks.
The Application
of Forensic Science
The
field of forensic science draws from a number of scientific branches, including
physics, chemistry, and biology, with its focus being on the recognition,
identification, and evaluation of physical evidence. It has become an essential
part of the judicial system, as it utilizes a broad spectrum of sciences to
achieve information relevant to criminal and legal evidence.
Forensic
science may prove the existence of a crime, the perpetrator of a crime, or a
connection to a crime through the:
- Examination of
physical evidence
- Administration
of tests
- Interpretation
of data
- Clear and
concise reporting
- Truthful
testimony of a forensic scientist
Forensic
science has become an integral part of many criminal cases and convictions,
with objective facts through scientific knowledge serving both defense and
prosecution arguments. The testimony of forensic scientists has become a
trusted component of many civil and criminal cases, as these professionals are
concerned not with the outcome of the case; only with their objective testimony
based purely on scientific facts.
Forensic
scientists perform both physical and chemical analyses on physical evidence
obtained by crime scene investigators and law enforcement officials at the
crime scene. These scientific experts use microscopic examining techniques,
complex instruments, mathematical principles, scientific principles, and
reference literature to analyze evidence as to identify both class and
individual characteristics.
Although
the majority of forensic scientists perform their jobs within the confines of
the forensic laboratory or morgue, their work may also take them outside of the
laboratory and to the crime scene, where they observe the scene and collect
evidence. Forensic scientists may work for local, state and federal law
enforcement agencies and government, private laboratories, and hospitals. They
may also serve as independent forensic science consultants.
The
Organization of Forensic Science
Due
to the highly complex field of forensic science, forensic scientists are most
often skilled in a particular area of forensic science, such as latent prints,
questioned documents, trace evidence, or firearms, just to name a few.
Forensic
scientists may be divided into three, major groups:
- Forensic Pathologists: These
include medical examiners and other professionals who oversee autopsies
and clinical forensic examinations
- Forensic Scientists: These
include forensic professionals working in law enforcement, government, or
private forensic laboratories who are responsible for dealing with any
number of specific tests and analyses, such as toxicology, ballistics,
trace evidence, etc.
- Associated Scientists: These
include scientific professionals lending their knowledge to forensic
science, such as forensic odontologists, forensic botanists, forensic
anthropologists, etc. These scientists apply their knowledge to the
forensic science field as to provide investigators with crucial
information regarding everything from bite marks to insect infestation on
the postmortem body.
The Study of Forensic Science
Although forensic science may be a very complex study,
particularly in the areas of DNA and trace evidence, for example, the study of
forensic science is grounded in fundamental concepts and techniques that are
gathered from the natural sciences. In particular, the study of forensic
science involves a multi-disciplinary approach that covers everything from
biological methods to analytical chemistry techniques.
The majority of forensic scientists study a specific
physical science, such as chemistry or biology, while others pursue forensic
science degrees that are rooted in either chemistry or biology.
A comprehensive degree from a college or university draws
from the biological sciences, as well as from the fields of criminal justice
and the law. Students learn to develop an appreciation of both the scientific
and social environment of the criminal justice system, and many students go on
to focus their degrees on specific areas of forensic science, such as DNA,
trace evidence, toxicology, latent prints, or questioned documents, for
example.