The jury heard extensive fiber and trace evidence from FBI expert Douglas Deedrick linking crime scene items to Simpson's Bronco and clothing, establishing that distinctive carpet fibers from the vehicle matched samples found at the Bundy scene. However, Judge Fujisaki barred Deedrick from presenting statistical probability evidence, ruling that attaching numbers to circumstantial evidence created prejudicial 'patina.' The defense mounted a vigorous attack on Deedrick's methodology and claimed he failed to disclose exculpatory findings, while DNA expert Robin Cotton was sworn in to begin foundational testimony on DNA testing methods.

• Judge Fujisaki excluded carpet fiber statistical analysis (1 in 100,000 frequency) under Evidence Code 352, finding it prejudicial
• FBI fiber expert Deedrick testified that distinctive carpet from Simpson's Bronco matched the most probative physical evidence recovered at Bundy
• Defense cross-examination forced Deedrick to admit exculpatory Negroid hairs found in knit cap were not disclosed and that secondary transfer could explain all findings
• DNA expert Dr. Robin Cotton sworn in and provided extensive educational testimony on RFLP, PCR, DQ Alpha, and Polymarker testing methods