Class vs Individual Evidence By Alejandro Murillo

What is Class Evidence? Class evidence is a group of objects or persons with characteristic physical evidence common to it Class evidence can be linked to a specific group May be shown to be like or consistent with questioned source, although not uniquely identifiable with that source Measurable features of an item that indicate a restricted group source based on design factors determined prior to manufacture

What is individual evidence? Individual characteristics can be identified as having originated with a particular person or source Individual evidence can only be linked to one person Marks on an object produced by the random imperfections or irregularities on the surfaces of the tools used to manufacture the object Produced incidental to the manufacturing process and typically seen at microscopic level

Examples Class Evidence Individual Evidence