What is forensic science?
Forensic science is the application
of natural sciences to matters of the law. In practice, forensic science
draws upon physics, chemistry, biology, and other scientific principles
and methods. Forensic science is concerned with the recognition, identification,
individualization, and evaluation of physical evidence. Forensic scientists
present their findings as expert witnesses in the court of law.
What is physical
evidence?
Physical evidence can be anything that tells
you about the situation being investigated. It can be weather conditions,
smells, or the position of doors and light switches. It can also be
items such as footwear impressions, fingerprints, tire tracks, and blood
spatter. Physical evidence can be marks left by weapons, patterns of
tearing or breaking, gunshot residues, hairs, fibers, glass, paint chips,
plastic, paper, typewriting, handwriting, computers, and marks left
by printers and copiers. It can be blood samples or tissues examined
for DNA typing or for the presence of alcohol or drugs. Physical evidence
is used to link together the suspect, victim and scene.
What are the subdisciplines in forensic
science?
Forensic scientists are often involved
in the search for and examination of physical evidence. This physical
evidence is useful for establishing or excluding an association between
a suspect of a crime and the scene of the crime and/or the victim(s)
or between the victim(s) and the crime scene. The scientist will sometimes
visit the scene to determine the sequence of events, any indicators
as to who the perpetrator might be, and to join in the search for evidence.
The following is a general listing of sub-disciplines and associated
examinations: Forensic Biologists analyze blood and other body fluids.
Forensic Trace Evidence examiners analyze hairs and fibers, paint, soil,
and glass. Forensic Chemists analyze flammable substances and evidence
from a scene of a suspected arson. Forensic Drug Chemists analyze suspected
drugs of abuse such as marijuana, cocaine, and heroin. Forensic Toxicologists
analyze specimens from individuals such as blood and urine for alcohol,
drugs, and poisons. Other Forensic Scientists specialize in footwear,
tool mark, and tire impressions; fingerprints; firearms; explosives;
questioned documents; computer crime; odontology; and/or engineering.
Where can I get information about forensic
science?
General forensic information can be
found in several locations in your local library. There are also many
Internet sites that have information about forensic science. Reddy’s
Forensic Home Page at www.forensicpage.com
is an organized site for specific links. Informational links for common
disciplines and careers in forensic science can also be found there.
A general search for forensic science books on sites
such as Amazon.com will provide a
long list of informational books. Criminalistics by Richard Saferstein
and Henry Lee’s Crime Scene Handbook by Henry Lee, Timothy Palmbach
and Marilyn Miller are two of many textbooks used by colleges, which cover
a broad range of forensic science topics, issues and procedures. Shorter,
cheaper and more topic specific books can also be found according to your
interests. For youths, a partial list of books about forensics can be
found at www.mfrc.ameslab.gov/forensics-book-list-youth.htm.
What courses should I take in high school
to prepare for a career in forensic science?
A background in math and sciences including
biology, chemistry, and physics will be helpful. A composition or writing
course may also be helpful. A solid education will enable you to continue
your studies in college and prepare you for a career in one of the many
different forensic science fields.
What type of education do I need to start
a career in forensic science?
The minimum acceptable training is
a Bachelors degree in forensic science, biochemistry, biology, chemistry,
medical technology, or in a closely related field which must have included
or been supplemented by twenty credit hours in chemistry. Ideally,
your coursework should include the following: microscopy, statistics,
and laboratory work.
A Bachelor's degree is essential for
a job in the following forensic disciplines: drug analysis, toxicology,
trace evidence, and forensic biology including DNA analysis.
The following articles contain additional
information about educational requirements for a career in Forensic
Science:
Furton, K., Hsu, Y-H., Cole, MD. What
Educational Background do Crime Laboratory Directors Require From Applicants?
J Forensic Sci, 1999;44(1):128-132.
Higgins, LM, Selavka, CM. Do Forensic
Science Graduate Programs Fulfill the Needs of the Forensic Science
Community? J Forensic Sci, 1988;33:1015-21.
Siegal, JA. The Appropriate Educational
Background for Entry Level Forensic Scientists: A Survey of Practitioners.
J Forensic Sci, 1988;33:1065-8.
Gaensslen, RE, Lee HC. Regional Cooperation
and Regional Centers Among Forensic Science Programs in the United States.
J Forensic Sci, 1988;33:1069-70.
Lee, HC, Gaensslen, RE. Forensic Science
Laboratory/Forensic Science Program Cooperation and Relationships: The
View From the Forensic Science Laboratory. J Forensic Sci, 1988;33:1071-3.
Which schools offer undergraduate and graduate
degrees in forensic science?
For a list and links to individual
schools, please refer to the colleges and universities list on the American
Academy of Forensic Science Web site, www.aafs.org,
or Reddy’s Forensic Home Page at www.forensicpage.com. A list of some of the Midwestern schools is also available on this web
site, www.mfrc.ameslab.gov.
What major should I choose?
The majority of positions within a
crime lab require a bachelor's degree in a physical science. Some universities
offer a degree in Forensic Science. However, if the university you are
attending does not offer such a program there are other majors you can
consider. The major that you choose should reflect the forensic discipline
in which you wish to work. For example, drug analysts should have a
degree with a concentration in chemistry, while DNA analysts should
have an emphasis on molecular biology. If you want to work in forensic
DNA analysis, you must have coursework in molecular biology, statistics,
genetics, and biochemistry. While Forensic Science degrees are not required,
most provide a curriculum that includes ancillary courses that are helpful
in the career. These include criminal law, courtroom procedures, and
expert testimony courses.
Do I need to have a master’s degree to
get a job in forensic science?
There is no general requirement for
a Master’s degree, although if you are interested in employment at a
specific laboratory, you should contact the director of the laboratory
to determine what they require. A Master’s degree in forensic science,
biochemistry, biology, chemistry, medical technology, or a closely related
field may substitute for experience and are useful for career advancement.
Again, contact the specific laboratory to inquire if this is their policy.
Many examiners/analysts have a BS in chemistry or biology and an MS
in forensic science. For specialty areas, advanced degrees are helpful
but not required.
Is there any experience requirement to
start a career in forensic science?
Some laboratories offer trainee positions
that do not require prior training in the forensic science field. Trainee
positions are not often available. It may be necessary to consider doing
an internship in a crime laboratory to gain experience. Unfortunately,
there is no official listing for these opportunities and you will need
to contact the laboratory you are interested in. The internship may
be easiest to do while you are a student. In fact, some universities
give credit for and/or require an internship.
What do I do if
I can't find a job/internship in forensic science?
Jobs in forensic science can at times be somewhat difficult
to obtain. If you have just graduated from college and cannot immediately
find a job in forensic science, finding a laboratory job in one of the
natural science fields (chemistry, biology, biochemistry, etc.) will
give you valuable laboratory technique and instrumentation experience.
A strong scientific job background will help make you a strong candidate
when applying for forensic science jobs. Being flexible and willing
to move may also help you find a job in forensic science. If you limit
yourself to a certain city or state, you may wait a long time for job
openings. You will have many more opportunities to find a job if you
are willing to move to the job instead of waiting for a job to open
in your area. Internships in forensic science are also hard to obtain.
Many crime labs do not offer internships, or only offer them when they
have a specific project to be completed. Call the crime lab you are
interested in to see if they have internship opportunities. An applicant
with a scientific job background will be better qualified when applying
for an internship. If no crime lab internships are available in your
area, keep doing other laboratory work, scientific experience will prepare
you for your career.
Why are internships important?
Internships provide students with the
opportunity to experience the "real world" of forensic science
and the crime laboratory. They also provide recent graduates with the
relevant experience that crime laboratory directors seek from applicants.
Getting an internship in any laboratory and learning about the theory
behind the techniques that are employed can be helpful. This will provide
experience in general laboratory procedures as well as safety processes
that are employed in laboratories. Be prepared to perform basic functions
such as washing glassware or clerical duties.
Do the subdisciplines within forensic
science have any specific requirements?
At this time, only DNA laboratories
have stated specific requirements. The latest FBI DNA Quality Assurance
Audit Document Issue 10/00 states that each examiner/analyst should
meet the following degree/educational requirements: a B.A./B.S. degree
or its equivalent in a biology, chemistry, or forensic science related
area; college course work or classes covering the subject areas of biochemistry,
genetics, and molecular biology; and college course work or training
which covers the subject area of statistics and/or population genetics.
What is the starting salary for a career
in forensic science?
The majority of forensic science laboratories
in the U.S. are publicly operated. The laboratories may be part of the
federal, state, county, or local government (Lee et al, 15). There are
also a number of private laboratories that operate independently, are
associated with universities, or are under contractual agreements with
government agencies (Lee et al, 16). The starting salary is dependent
on the above factors and individuals should contact the specific laboratory
that they are interested in. Salaries for Crime Laboratory analysts
vary from region as well as position. The starting salary is generally
around $30,000. Analysts with many years of experience may make $60,000-$70,000.
What type of work environment can I expect?
Most analysts work in a laboratory
setting for 8 hours per day. Some analysts may assist at crime scenes
where the hours can vary throughout the day and night.
Where can I find more information about
forensic job opportunities?
In addition to job listings on this
site, there are other sites which may be helpful. Check out the American
Society of Crime Lab Director's home page at www.ascld.org.
ASCLD members are laboratory directors and if they have a job opening,
they usually send the information to the web master for posting. Also,
go to the American Academy of Forensic Science’s home page at www.aafs.org
and click on "job opportunities". The AAFS lists job openings
according to title and receive postings from numerous laboratory locations.
What else will help me get a job in a
crime lab?
Courtroom testimony is an essential
job duty for a forensic analyst. Therefore public speaking and the ability
to convey scientific concepts in understandable terms is vital. Most
laboratories require applicants to undergo some sort of background evaluation
prior to employment. This may include polygraphs, drug screens, or background
investigations. Drug use, alcohol abuse, theft, and even excessive traffic
violations are often causes for dismissal from the application process.
While many professions may be willing to forgive youthful indiscretions,
law enforcement will not. The credibility of a forensic scientist is
highly scrutinized, therefore applicants with compromised credibility
will most likely be disqualified from the application process.
How accurate are
the television shows that portray forensic scientists?
Popular television shows such as CSI: Crime Scene Investigators,
have increased the popularity of the forensic science field. However
much work is done by creators to make the show as real as possible,
the purpose is entertainment, and the depiction of forensic scientists
can be far from accurate. Forensic scientists will not interrogate
suspects and will not perform investigations. This is the job of police
officers and investigators. Forensic crime scene analysts will arrive
at the scene, process the scene, collect the evidence, and transport
that evidence to the laboratory. Depending on the organization, crime
scene analysts may continue with the case and process the evidence in
the laboratory, or they may hand over the evidence to laboratory analysts.
Due to backlogs and lack of personnel, it may take weeks for a piece
of evidence to be processed. The job of a forensic scientist is often
routine and repetitive; the majority of your time will be spent processing
evidence and filling out paperwork, not running around town chasing
down criminals. Another common misconception is that forensic scientists
perform autopsies. Autopsies are performed by Medical Examiners who
have gone to medical school and become doctors, in some areas of the
country autopsies are also performed by coroners, who may not be doctors.
Even though a forensic scientist does not perform autopsies, one must
be prepared for being exposed to the gory nature of many crimes.