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's on both gloves, the blue knit cap, and Goldman's clothing; hairs consistent with Ron Goldman's on the Rockingham glove; and hairs exhibiting the same microscopic characteristics as the Defendant's known hair standard inside the blue knit cap. The prosecution portrayed violent contact through approximately 35 forcibly removed hairs consistent with Nicole's on Goldman's shirt, while Deedrick also identified dog hairs consistent with Nicole's Akita on both gloves. Deedrick also associated a fragment on Goldman's shirt with Simpson's hair through microscopic characteristics and considered secondary transfer more likely than primary transfer, while attack-specific hypotheticals drew sustained objections. 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.