ABSTRACT
Obtain unknown prints and reference (comparison) prints in an envelope from your instructor. 2. Record the identification data (numbers and/or letters) of the known and unknown prints in the
appropriate areas of the Report section. 3. Compare each unknown set of prints from the envelope to known comparison prints on the
cards. All unknown prints should be identified or reported as “no reference found” (see Figures 6.1 through 6.3 and descriptions of features below).