The North Carolina State Crime Laboratory is one of the premier forensics laboratories in the nation. Find the right forgery expert witness for your case with ForensisGroup.Mark each item with the item number you listed on the Request for Examination of Physical Evidence form, your name or initials, and your case number. 7. Scientists with the Forensic Biology discipline examine evidence for the presence of body fluids such as blood and semen as well as conduct DNA analysis. This type of forgery will sometimes allow an examiner to identify who made the forgery based on the handwriting habits that are present in the forged signature. Document examination and handwriting identification services specifically regarding forged signatures on wills and related estate documents.