FBI hair and fiber expert Douglas Deedrick spent the day presenting detailed testimony on hair evidence recovered from key crime scene items, including hairs consistent with Nicole Brown Simpson and Ron Goldman found on both gloves, the blue knit cap, and Goldman's clothing. The prosecution portrayed violent contact through approximately 35 forcibly removed hairs on Goldman's shirt and dog hairs from Nicole's Akita found on both gloves. The day was marked by legal tension when Judge Ito strictly enforced his earlier prohibition on the term 'match' in expert testimony, even threatening jail time for any further violations.