Marya Lieberman, PhD, is an analytical chemist at the University of Notre Dame whose research focuses on point-of-use testing devices and pharmaceutical quality. She is a member of the Alliance for Collaborative Drug Checking (AC/DC), a DEA licensed researcher who has published over 100 peer-reviewed papers, and the 2022 recipient of the Giddings Award from the American Chemical Society. Her work has highlighted problems with fentanyl test strips such as false positives, blind spots, and lot-to-lot variability, and she leads a community effort to perform lot checking on brands and batches of FTS that are marketed for harm reduction purposes.