FORENSICS EXAM TSA –
PRACTICE TEST & FORENSIC
SCIENCE STUDY GUIDE WITH
VERIFIED ANSWERS 2026
UPDATE!!
Autopsy - answer-The internal and external examination of a body after death. An
autopsy is performed to confirm or determine the cause of death and establish other
pre-death conditions, such as the type of food last consumed and the time it was
consumed.
Ballistics - answer-The study of the motion of bullets and their examination for
distinctive characteristics after being fired. Examiners can use this evidence to match
bullets or bullet fragments to specific weapons.
Blood Splatter - answer-The pattern of blood that has struck a surface. This pattern can
provide vital information about the source of the blood. Can help determine the size and
type of wound, the direction and the speed with which the perpetrator or victim was
moving, and the type of weapon used to create the blood spill.
Caliber - answer-The diameter of the bore of a rifled firearm, usually expressed in
hundredths of an inch or in millimeters.
Composite Drawing - answer-A sketch of a suspect produced from eyewitness
descriptions of one or more persons.
Criminology - answer-The study of criminal activity and how it is dealt with by the law.
DNA - answer-Deoxyribonucleic acid. Double helix strand. Genetic code (fingerprint).
50% from mom and 50% from dad. ACGT.
,DNA Electrophoresis - answer-The technique by which DNA fragments are placed in a
gel and charged with electricity. An applied electric field then separates the fragments
by size, as part of the process of creating a genetic profile.
DNA Profiling - answer-The process of testing to identify DNA patterns or types. In
forensic science this testing is used to indicate parentage or to exclude or include
individuals as possible sources of bodily fluid stains (blood, saliva, semen) and other
biological evidence (bones, hair, teeth)
Evidence - answer-Anything that has been used, left, removed, altered, or contaminated
during the commission of a crime or other event under investigation
Fingerprint - answer-The unique patterns created by skin ridges found on the palm sides
of fingers and thumbs.
Forensic Science - answer-The application of science to law. The application of science
to those criminal and civil laws that are enforced by police agencies in a criminal justice
system. The focus of forensics is the crime lab. The crime lab uses the principles and
technique of biology, chemistry, physics, geology, anthropology, and other sciences in
order to place physical evidence into a professional discipline.
Absolute Certainty - answer-ultimate sureness with no implication of possible change.
Accountability - answer-the quality of subordinate workers being responsible for his/her
own work and answerable to a superior.
Accuracy - answer-the degree of conformity of a measured quantity to its actual (true)
value.
Acetone - answer-a colorless, highly flammable chemical compound used as an
organic solvent, an ingredient in many lacquer thinner compounds and adhering liquids.
, Accelerant - answer-an agent, often an ignitable liquid, that acts to initiate a fire or
increase its rate of spread.
Administrative documentation - answer-records such as case related conversations,
evidence receipts, description of evidence packaging and seals, and other pertinent
information.
Administrative (or Laboratory Director) Case File Review - answer-a detailed final review
of the case file documentation. A member other than the assigned analyst must
conduct the Laboratory Director case file review on all case files.
Algor mortis - answer-the postmortem cooling of the body.
Analytical Data - answer-all case specific records such as notes, worksheets, graphs,
spectra, printouts, computer data files, photographs, photocopies, microscopic slides
and other data or records.
Analytical Procedure - answer-an orderly step-by-step process designed to ensure
operational uniformity and to minimize systematic variability.
Analyst - answer-any ADFS personnel assigned to perform scientific investigation or
evidential examination.
Ante mortem - preceding death Antigens - answer-foreign substances in the body that
are capable of causing disease.
Arson - answer-the intentional and unlawful burning of a building or other property.
Assessment - answer-the process of evaluating analysts to determine their level of
technical knowledge, skills, and abilities.
PRACTICE TEST & FORENSIC
SCIENCE STUDY GUIDE WITH
VERIFIED ANSWERS 2026
UPDATE!!
Autopsy - answer-The internal and external examination of a body after death. An
autopsy is performed to confirm or determine the cause of death and establish other
pre-death conditions, such as the type of food last consumed and the time it was
consumed.
Ballistics - answer-The study of the motion of bullets and their examination for
distinctive characteristics after being fired. Examiners can use this evidence to match
bullets or bullet fragments to specific weapons.
Blood Splatter - answer-The pattern of blood that has struck a surface. This pattern can
provide vital information about the source of the blood. Can help determine the size and
type of wound, the direction and the speed with which the perpetrator or victim was
moving, and the type of weapon used to create the blood spill.
Caliber - answer-The diameter of the bore of a rifled firearm, usually expressed in
hundredths of an inch or in millimeters.
Composite Drawing - answer-A sketch of a suspect produced from eyewitness
descriptions of one or more persons.
Criminology - answer-The study of criminal activity and how it is dealt with by the law.
DNA - answer-Deoxyribonucleic acid. Double helix strand. Genetic code (fingerprint).
50% from mom and 50% from dad. ACGT.
,DNA Electrophoresis - answer-The technique by which DNA fragments are placed in a
gel and charged with electricity. An applied electric field then separates the fragments
by size, as part of the process of creating a genetic profile.
DNA Profiling - answer-The process of testing to identify DNA patterns or types. In
forensic science this testing is used to indicate parentage or to exclude or include
individuals as possible sources of bodily fluid stains (blood, saliva, semen) and other
biological evidence (bones, hair, teeth)
Evidence - answer-Anything that has been used, left, removed, altered, or contaminated
during the commission of a crime or other event under investigation
Fingerprint - answer-The unique patterns created by skin ridges found on the palm sides
of fingers and thumbs.
Forensic Science - answer-The application of science to law. The application of science
to those criminal and civil laws that are enforced by police agencies in a criminal justice
system. The focus of forensics is the crime lab. The crime lab uses the principles and
technique of biology, chemistry, physics, geology, anthropology, and other sciences in
order to place physical evidence into a professional discipline.
Absolute Certainty - answer-ultimate sureness with no implication of possible change.
Accountability - answer-the quality of subordinate workers being responsible for his/her
own work and answerable to a superior.
Accuracy - answer-the degree of conformity of a measured quantity to its actual (true)
value.
Acetone - answer-a colorless, highly flammable chemical compound used as an
organic solvent, an ingredient in many lacquer thinner compounds and adhering liquids.
, Accelerant - answer-an agent, often an ignitable liquid, that acts to initiate a fire or
increase its rate of spread.
Administrative documentation - answer-records such as case related conversations,
evidence receipts, description of evidence packaging and seals, and other pertinent
information.
Administrative (or Laboratory Director) Case File Review - answer-a detailed final review
of the case file documentation. A member other than the assigned analyst must
conduct the Laboratory Director case file review on all case files.
Algor mortis - answer-the postmortem cooling of the body.
Analytical Data - answer-all case specific records such as notes, worksheets, graphs,
spectra, printouts, computer data files, photographs, photocopies, microscopic slides
and other data or records.
Analytical Procedure - answer-an orderly step-by-step process designed to ensure
operational uniformity and to minimize systematic variability.
Analyst - answer-any ADFS personnel assigned to perform scientific investigation or
evidential examination.
Ante mortem - preceding death Antigens - answer-foreign substances in the body that
are capable of causing disease.
Arson - answer-the intentional and unlawful burning of a building or other property.
Assessment - answer-the process of evaluating analysts to determine their level of
technical knowledge, skills, and abilities.
