1) Latent fingerprints, or surface fingerprints, are caused by the transfer of skin onto a surface. F
2) Toxicology is the study of poisons and the identification of drugs and other substances a
person may have used for medicinal purposes only. F
3) Biological evidence should be packaged in plastic or airtight containers. F
4) Today, more than ten percent of all homicides result from poisoning. F
5) The three kinds of crime scene fingerprints are visible prints, invisible prints, and latent prints. F
6) Drugs are divided into three classes based on the reactions they produce. F
7) Correct packaging of the drug related evidence is only to preserve the evidence. F
8) People with type O blood have both A and B antigens on their red blood cells. F
9) Continued use of a drug can lead to addiction and dependency. T
10) Drugs deemed to have the highest potential for abuse and having a current medical use are
listed in Schedule I of the Controlled Substances Act. F
11) The toxicologist isolates the metabolites of the substances to verify their presence in the body.T
12) An antigen is a protein that destroys or inactivates a specific antibody. F
13) A latent fingerprint is a fingerprint made by the deposit of oils and/or perspiration that is visible
to the naked eye. F
14) A heterozygous gene pair is made up of two different alleles while a homozygous gene pair is
made up of two similar alleles. T
15) When two different genes are inherited, the characteristic coded for by a recessive gene is
expressed. F
16) A plain arch is the simplest of all fingerprint patterns.T
17) A document expert is a specially trained person who scientifically analyzes printing in a
document. F
18) A questioned document is any signature, handwriting, typewriting, or other written mark whose
source or authenticity is in dispute or uncertain.T
19) Document analysis is the examination and comparison of questioned documents with known
material.T
20) Formatting includes the spacing between letters, the spacing between words and lines, the
placement of words on a line, and the margins a writer leaves empty on a page. T
21) Generally, the primary purpose of forging something is to profit from the fake or alteration.T
22) Fine glassware and decorative art glass, called crystal or leaded glass, contain lead oxide
rather than calcium oxide.T
23) The primary ingredient of glass is carbon dioxide.F
24) Forgery can be accomplished by altering documents in several ways. T
25) Crime-scene investigators should initially separate collected glass evidences based on their
chemical properties. F
26) One of the shortcomings of handwriting analysis is that it is subjective. T
27) Cutting marks are marks produced along the edge as a surface is cut. T
28) The submersion method is used to determine the refractive index of small glass fragments. T
29) Impressions fall into three basic categories: patent, latent, and plastic. T
30) Abrasion marks are made when surfaces slide across one another. T
31) Databases contain the names of specific shoe manufacturers and tread patterns used to
identify different types of shoes. T
32) When tools are found, they are collected and packaged together in containers or boxes and
then taken to a laboratory for analysis. F
33) Handwriting experts can't determine whether a person has tried to disguise his or her
handwriting. F
34) A tool mark is any impression, scratch, or abrasion made when contact occurs between a tool
and an object. T
35) Initial comparisons of documents are done with the unaided eye, a handheld lens, or a
microscope. T
36) Counterfeit money feels the same as real money. F
37) When removal of the original tool mark is impossible, the forensic examiner photographs the
marked area to scale and makes a cast of the mark. T
38) The type of saw blade used to dismember a body can be determined by examining the cut
surface of the flesh. F
39) Plastic impressions are three-dimensional imprints. These impressions can be left in off-road
surfaces such as snow, sand or grass. T
40) Tools have unique characteristics due to manufacturing processes and use over time.T
41) Heat-fractured glass evidence is important in arson investigation. T
42) Crime scene tool marks and suspect tools are never fitted together to show a match. This
would damage the integrity of the evidence. T
43) Depending on how it is made, impression evidence may be either class evidence or trace
evidence. F