Marcia Clark served as a deputy district attorney and lead prosecutor for the People, with a transcript footprint spanning 156 days across the preliminary and criminal proceedings. She examined dozens of witnesses, including Allan Park, Brian “Kato” Kaelin, Detectives Mark Fuhrman, Philip Vannatter, and Tom Lange, Gregory Matheson, and Michele Kestler; during trial, she also cross-examined defense toxicologist Dr. Fredric Rieders and challenged his credibility through alleged inconsistencies in prior work. When questions arose about documentation of her visit to the Bundy crime scene, Clark made an unsworn representation as counsel concerning her movements and when she learned of a videotape.