Contact areas of instruments and tools can be compared with marks/impressions at a crime scene in order to provide an indication of whether or not the instrument/tool could have caused the mark/impression. If so, how likely is it?
Examinations of this type can, of course, also be used to exclude items as having caused marks or impressions.
Expert services include:
- Report upon marks made by a particular weapon or tool
- Report upon stab marks, footwear marks or other injuries on a human body