ABSTRACT

In this chapter, we will treat all types of classical trace evidence if examined predominantly by microscopical techniques and methods as examples of microanalysis. The purpose of these analyses is to determine whether an association of persons, places, and things can be established and the strength of that association. The association is predicated on the comparison of materials found and the drawing of the conclusion that they are of common origin. The criminalist is drawn to the common origin conclusion, if after having examined the samples in sufficient detail, he is unable to establish a forensically significant difference in the materials. The weight of this association is a function of level of individuality that resulted from his examinations.