Unit 1 and 2: History of Forensic Science/Crime Scene Searches

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1 Unit 1 and 2: History of Forensic Science/Crime Scene Searches A forensic scientist is considered to be an expert witness because: A. he/she has knowledge relevant to the trial that is not expected of the average layperson B. he/she uses words that no one else can understand C. he/she works for the government D. All of the above The forensic science service that is used in competency hearings and profiling suspects is: A. Forensic Engineering B. Forensic Anthropology C. Forensic Pathology D. Forensic Psychiatry Who developed the classification system used in most English speaking countries? A. Dr. Vucetich B. Mr. Galton C. Sir Henry D. Mr. Saferstein Who currently has the largest collections of fingerprints in the world? A. Scotland Yard B. the FBI C. the KGB D. the Kremlin One of the earliest crime laboratories was founded by: A. Albert Osborn B. Hans Gross C. Edmond Locard D. Leone Lattes E. Francis Galton The following service does not normally lie within the expertise of the forensic scientist: A. Drug identification B. Glass comparisons C. Document examination D. Polygraph examination It is okay to put two socks into the same evidence bag if they are matching socks. The effectiveness of an expert's testimony is almost always dependent on: A. The experience of the expert B. The ability of the expert to talk in clear, concise language C. The educational background of the expert D. The scientific validity of the tests used E. All of the above A medical dissection and examination of a body in order to determine the cause of death is called a(n): A. homicide B. pathology C. autopsy D. mortis Any person has the right to walk into a roped off crime scene area. The forensic unit responsible for documenting crime scenes and preparing exhibits for courtroom testimony is: A. the firearms unit B. the document examination unit C. the physical science unit D. the photography unit The forensic science service that studies insects to determine time of death is:

2 A. Forensic Pathology B. Forensic Anthropology C. Forensic Engineering D. none of the above The process by which the body temperature cools after death is known as: A. Rigor mortis B. Algor mortis C. Livor mortis D. Denaturation E. Ambient degradation A police officer has the right to take any type of evidence from you at any time. Which of the following techniques can be used to estimate the time of death? A. Rigor mortis B. Livor mortis C. Insect infestation D. All of the above To work in a forensic laboratory, you must have A. an associate s degree in math B. a 4 year college degree in science C. a really good smile D. none of the above The toxicology unit in a forensic laboratory A. analyzes hairs and fibers B. is used for criminal interrogations C. determines presence of alcohol/drugs/poisons in blood, urine or body fluids The forensic science service that identifies remains using teeth and bite mark analysis is: A. Forensic Engineering B. Forensic Odontology C. Forensic Anthropology D. Forensic Psychiatry The obligation to maintain the integrity of evidence belongs to which of the following? A. The first police officer at the scene B. The forensic scientist C. The evidence clerk D. All of the above If you pick up a piece of evidence before you photograph it, it is okay to put it back in the crime scene to photograph it as long as you document it. All evidence should be photographed before being collected. The value of laboratory test results is almost always dependent on: A. The importance of the case B. The quantity of evidence submitted C. The way the evidence is collected D. The crime laboratory's caseload E. None of the above A chain of custody is a list of all people who came into possession of an item of evidence. The manner of collecting and preserving physical evidence at a crime scene is determined by: A. The importance of the case B. The number of evidence collectors present at the crime scene C. The nature of the evidence Physical evidence may be obtained from:

3 A. The crime scene B. The victim C. The suspect D. All of the above E. None of the above A comparison analysis subjects a suspect specimen and a control specimen to the same tests and examinations for the ultimate purpose of determining: A. Whether or not they have a common origin B. If they are identical in chemical composition C. If the same person handled them Physical evidence that can be used to aid in a crime scene reconstruction include: A. Blood spatters B. Gunshot residues C. Glass fragments D. Shoeprints E. All of the above Evidence having class characteristics can: A. Free an innocent suspect B. Link a person to a crime but not identify that person exclusively C. Always be fitted together in the manner of a jigsaw puzzle Which of the following is NOT a National Forensic Laboratory? A. FBI B. DEA C. ATF D. Charleston Police Forensic Lab Which of the following is NOT a function of a forensic scientist? A. Analyze physical evidence B. Provide testimony in court C. Interrogate suspects D. All of the above What are the three basic types of crime scene searches? A. spiral, grid and lane B. block, circular and triangular C. linear, grid and oval D. square, circle and rectangle Unit 3: Fingerprints Fingerprints can be changed during a person s lifetime. The three general patters into which fingerprints are divided are: A. Loop, whorl and cyclical B. Arch, lasso and whorl C. Loop, arch and whorl D. Arch, linear and loop A fingerprint left by a person with soiled or stained fingerprints is called a A. plastic print B. visible print C. latent print D. ridge print Fingerprints on hard and nonabsorbent surfaces are best developed by the application of A. fingerprint powder B. ninhydrin C. silver nitrate D. Super glue Chemical treatment with visualizes fingerprints on porous articles that may have been wet at one time. A. fingerprint powder B. ninhydrin

4 C. silver nitrate D. Super glue AFIS stands for: A. Automated Fingerprint Identification System B. Actual Fingerprint Identity System C. Authentic Fingerprint Individual System D. None of the above Which of the following types of fingerprints are more likely to be found impressed in soft wax? A. Visible B. Plastic C. Latent D. Hidden Protein residues are best developed into fingerprint impressions with: A. Iodine B. Ninhydrin C. Physical developer D. Dusting powder Unit 4 and 5: Serology/DNA analysis Blood, semen and saliva are types of physical evidence that can tell you A. class only B. identification only C. identification and class Karl Landsteiner discovered that blood can be identified by its A. droplet size B. antigens and antibodies C. angle of impact D. principles Which of the examples below are all Heterozygous? A. WW, YY, zz, B. Ee, Ff, Gg C. Aa, Bb, CC D. aa, bb, cc The base paring rules in DNA are: A. G pairs with A B. A pairs with T C. C pairs with G D. Both B and C Short Tandem Repeats (STR) can be found: A. in sperm and egg only B. on the chromosomes C. in the cytoplasm D. only in male suspects On the surface of the red blood cells are chemical substances called. A. antigens B. antibodies C. hemoglobin D. secretors The fundamental unit of heredity is the: A. nucleotide B. atom C. gene D. cell The national DNA database in the United States goes by the name: A. PCR B. CODIS C. STR D. GCMS Type O individuals have antigens located on the surface of their red blood cells. A. A B. B C. No D. Both A and B An antibody will react with antigen.

5 A. any B. no C. only a specific Agglutination describes the clumping together of red blood cells by the action of an antibody. A is composed of a sugar molecule (ribose), a phosphorus containing group and a nitrogen containing molecule called a base. A. nucleotide B. atom C. gene D. cell DNA fragments can be sorted out according to their size by the technique of A. PCR B. agarose gel electrophoresis C. STR D. CODIS Type B blood contains antigens and anti- antibodies. A. A, AB B. B, O C. B, A D. O, AB Type AB blood contains antigens and antibodies. A. A and B, No B. No, A and B describes the study of antigen-antibody reactions. A. Serology B. Agglutination C. Secretor D. Histology Antibody-B will agglutinate blood type: A. A B. B C. O D. None of the above Unit 6: Document Analysis 1Any object that contains handwriting or typewriting and whose source or authenticity is in doubt is referred to as a A. exemplar B. questioned document C. erasure D. indented writing writings are partially visible impressions appearing on a sheet of paper underneath the one on which the visible writings was done. A. exemplar B. questioned writing C. erasure D. indented writing A known sample used to compare to the questioned document is known as the: A. Exemplar B. Chromatography C. Obliteration D. Questioned Document A destructive technique used by a document examiner after all other analysis is complete is known as: A. Chromatography B. Indented Writings C. Exemplar D. Obliteration

6 Blotting out or smearing of writing or printing to make the original unreadable is called a(n): A. Chromatography B. Indented Writings C. Exemplar D. Obliteration Unit 7: Hairs and Fibers The most prevalent natural plant fiber is: A. cotton B. silk C. linen D. flax What two large groups are fibers classified as? A. Suspect and Victim B. Synthetic and Natural C Real and Fake D. Real and Synthetic The significance of fiber evidence depends on: A. Location of fibers found B. Number of fibers found C. Nature of fibers found D. All of the above The first step in the forensic examination of fibers will be the comparison of color and diameter. A. FALSE B. TRUE fibers are derived in whole from animal or plant sources. A. Synthetic B. All C. Natural Rayon is classified as a: A.Natural fiber B. Synthetic fiber C. Plant fiber The three layers that make up the hair shaft are the: A. cuticle, density and anagen B. anagen, catagen and telogen C. cuticle, cortex and medulla D. None of the above The contains the pigment granules that give color to the hair A. cuticle B. cortex C. medulla The cuticle: A. is the outside covering of the hair B. is formed by overlapping scales C. looks like shingles on a roof D. All of the above The central canal running through many hairs is known as the: A. cuticle B. medulla C. root D. cortex Hair can best be characterized as originating from an animal by examining: A. The medulla B. The cuticle C. Both the medulla and cuticle D. The color Which statement is true? A. The racial origin of hair can never be identified. B. Hair is routinely examined to determine sex. C. A single hair can be individualized to one person. D. Two hairs from the same head may not have the same characteristics, so you should collect samples from all over the head.

7 The total magnification of a microscope is determined by: A. The eyepiece B. The objective C. Eyepiece X objective D. None of the above Unit 8 : Drug Analysis The development of dependence on a drug is shown by withdrawal symptoms such as convulsions when the user stops taking the drug. A. physical B. psychological B. Both A and B D. None of the above drugs are analgesics that exert a depressant action on the central nervous system. A. hallucinogenic B. stimulant C. narcotic D. depressant Drugs that cause marked alterations in normal thought processes, perceptions and mood are called. A. hallucinogenic B. stimulant C. narcotic D. depressant Alcohol the central nervous system. A. stimulates B. depresses C. has no affect on D. None of the above Cocaine is a powerful central nervous system. A. stimulant B. depressant C. narcotic D. hallucinogenic The federal drug control law is known as the. A. Stoners Law Act B. Controlled Substances Act C. Federal Drug Act D. Drug Classification Act Federal law establishes schedules of classification for the control of dangerous drugs. A. Three B. Four C. Five D. Six Drugs that have no accepted value are placed in Schedule. A. One B. Two C. Six D. Five The development of dependence on a drug is shown by the conditioned use of a drug caused by underlying emotional needs A. physical B. psychological B. Both A and B D. None of the above

8 A is a substance taken to increase alertness or activity speeds up body activities that are controlled by the nervous system. A. narcotic B. stimulant C. depressant A lessens the functions of the central nervous system, calms irritability and anxiety and may induce sleep. A. narcotic B. stimulant C. depressant