Tiffany Roy MSFS, JD is a Forensic DNA expert with over thirteen years of forensic biology experience in both public and private laboratories in the United States. She has processed thousands of DNA samples and thousands of cases over the course of her career. She has provided expert witness testimony in more than one hundred cases in state, federal and international courts. She instructs undergraduates at Palm Beach Atlantic University; University of Maryland Global Campus; and Southern New Hampshire University. She currently acts as a consultant for attorneys and the media in the area of forensic biology through her firm, ForensicAid, LLC.

Roy holds degrees from Syracuse University, Massachusetts School of Law and University of Florida in the areas of Biology, Law and Forensic Science. Her teaching, legal writing and testimonial experience help her to take complex scientific concepts and make them easily understandable for the nonscientist. Roy assisted Dr. Saferstein in completing Forensic Science: From the Crime Scene to the Crime Lab 4e (Pearson 2019) and has authored the text The Complete Guide to the American Board of Criminalistics Molecular Biology Examination (CRC Press 2020) to assist working forensic scientists achieve the goal of certification.

Roy is a member of the American Academy of Forensic Sciences, the Northeastern Association of Forensic Scientists and the Massachusetts Board of Bar Examiners. She is a certified Diplomate in the area of Forensic Biology by the American Board of Criminalistics. Aside from her teaching, writing and consulting, Roy also assists with international capacity building initiatives, providing subject matter expertise for trainings for criminal justice stakeholders in the Middle East and Africa.