This course is a study of the nature, types and degrees of evidence used in criminal prosecutions. The vital importance of “why” and “how” evidence handled by the forensic criminalists for proper presentation and administration into the trial in accordance with historical rule governing the admissibility of evidence in court is emphasized. This includes the citizen-to-criminalist, criminalist-to-criminalist, and criminalist-to-prosecution chain of evidence rules. A basic legalistic criminalistic component will be stressed which will examine the various analytical systems used in the evaluation of physical evidence which includes the correct identification, collection, and preservation of evidence.