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190928101 ASTM E1732 1 EN ᴾᴼᴼᴮᴸᴵᶜᴽ
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Designation: E 1732 – 96a
Standard Terminology
Relating to Forensic Science
1
This standard is issued under the fixed designation E 1732; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This is a compilation of terms and corresponding
definitions used in the forensic sciences. Legal or scientific
terms that are generally understood or defined adequately in
other readily available sources may not be included.
1.2 A definition is a single sentence with additional infor-
mation included in notes. It is reviewed every five years, and
the year of last review or revision is appended.
1.3 Definitions identical to those published by another
standards organization or ASTM committee are identified with
the abbreviation of the name of the organization or the
identifying document and ASTM committee; for example,
ASME is the American Society of Mechanical Engineering.
2
1.4 Definitions of terms specific to a particular field are
identified with an abbreviation.
3
2. Referenced Documents
2.1 ASTM Standards:
E 1387 Test Method for Flammable or Combustible Liquid
Residues in Extracts from Samples of Fire Debris By Gas
Chromatography
4
E 1422 Guide for Test Methods for Forensic Writing Ink
Comparison
4
E 1610 Guide for Forensic Paint Analysis and Comparison
5
3. Significance and Use
3.1 These terms have particular application to the forensic
sciences. In addition, a hierarchy of sources of definitions were
used in the development of this terminology. The hierarchy is
as follows: Websters New Collegiate 7th Dictionary; technical
dictionaries; and the Compilation of ASTM Standard Defini-
tions.
5
The subcommittee developed a suitable definition after
all of the sources in the hierarchy were found wanting.
4. Terminology
4.1 Definitions:
accelerant, n—any material used to initiate or promote the
spread of a fire. The most common accelerants are flam-
mable or combustible liquids. Whether a substance is an
accelerant depends not on its chemical structure but on its
use (source: IAAI Forensic Science Committee, Glossary of
Terms Related to Chemical and Instrumental Analysis of
Fire Debris
6
) (use: Test Method E 1387) CRIM.
associative evidence, n—that evidence which tends to link a
person, place, or thing with another person, place, or thing.
class, n—a group, set, or kind marked by common attributes or
a common attribute (source: Webster’s Unabridged Dictio-
nary, 1967) (use: Test Method E 1387) CRIM.
class characteristic(s), n—the attribute(s) that establish mem-
bership in a class.
classification, n—the systematic arrangement of persons or
objects into categories (groups or classes) based on shared
traits or characteristics (source: Osterburg and Ward, Crimi-
nal Investigation, 1992, p. 835) (use: Test Method E 1387).
comparison sample, n—(fire debris) 1) a sample of material
collected from a fire scene which is, to the best of the
investigator’s knowledge, identical in every respect to a
sample suspected of containing ignitable substance, but
which does not contain ignitable substance. 2) a sample of
suspected ignitable substance submitted for the purpose of
comparing with any ignitable substance separated from a
debris sample. (see control sample)
control, n—material of established origin that is used to
evaluate the performance of a test or comparison.
criminalistics, n—a brance of forensic science concerned with
the examination and interpretation of physical evidence, for
the purpose of aiding forensic investigation.
known, n—of established origin associated with the matter
under investigation.
questioned, n—associated with the matter under investigation
about which there is some question, including, but not
limited to, whether the questioned and known items have a
common origin.
standard, n—material of established origin with certified
properties.
exemplar, n—a specimen of physical evidence of known
1
This terminology is under the jurisdiction of ASTM Committee E-30 on
Forensic Sciences and is the direct responsibility of Subcommittee E30.92 on
Terminology.
Current edition approved March 10 and May 10, 1996. Published November
1996. Originally published as E 1732 – 95. Last previous edition E 1732 – 95.
2
Any definition that is unsourced has been developed by ASTM Subcommittee
E30.92.
3
Abbreviations are as follows: CRIM 5criminalistics, QD 5questioned docu-
ments, ENGR 5engineering, TOX 5toxicology, PB 5pathology/biology,
ANTH 5anthropology, and ODEN 5odentology.
4
Annual Book of ASTM Standards, Vol 14.02.
5
Compilation of ASTM Standard Definitions, 7th Ed., ASTM, Philadelphia, PA,
1990.
6
Available from International Association of Arson Investigators, 5428 Del
Maria Way, 201, P. O. Box 91119, Louisvile, KY 40291.
1
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM