(Received 6 April 1971; accepted 10 December 1971)
Published Online: April
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The examiner of questioned documents must make observations of form, area, mass, length, width, angle, curvature, and texture, and other features not so readily named. Many of the features observed are subject to reasonably exact and fairly convenient measurement. There is one element of examination; namely, color, which is not usually measured. One can make close judgments about differences and similarities of color, especially when there is good control over the method of lighting and when the two objects being compared can be brought close together and studied at the same time under magnification. These judgments are highly useful in the solution of questioned document problems and they sometimes constitute the most important elements in a determination that a particular document is spurious. But a judgment is not a measurement.
Document examiner, Washington, D.C.
Stock #: JFS10683J