Prosecutor Harmon mounted an aggressive cross-examination of defense DNA statistics expert Dr. Terence Speed, challenging his qualifications and limited case-specific analysis; Speed disputed Harmon's assertion that Dr. Weir's population frequency estimate was the only statistical information before the jury. Meanwhile, Judge Ito recused himself from a motion involving LAPD Internal Affairs records after disclosing his wife's recent promotion to Captain III of that division. The day also featured multiple disputes and testimony from Gretchen Stockdale about a voicemail Simpson left her on the night of the murders, including the tape's chain of custody and her later recording over the copy she retained.

• Prosecutor Harmon engaged in sustained cross-examination of Dr. Terence Speed, exposing his limited case-specific analysis and lack of familiarity with particular evidence items
• When Harmon introduced a Speed letter that had not been disclosed to the defense beforehand, Judge Ito gave Neufeld five minutes to review it; at a later sidebar, Ito restricted its use to the sentence about assumptions as a credibility point
• Judge Ito recused himself from ruling on an LAPD Internal Affairs motion after revealing his wife's recent promotion to Captain III of that division
• Defense witness Gretchen Stockdale testified about a voicemail Simpson left her at 7:35 PM on June 12, 1994, and said she later recorded over the copy she had retained
• Judge Ito reassigned the Internal Affairs motion to another judge (Judge Reid), who deferred materiality determination back to Ito
• Proceedings addressed separate disputes over Baden and Wolf's notes, Harmon's use of Speed's letter, the voicemail's chain of custody, and access to Internal Affairs records