The day opened with testimony and argument about Detective Luper's handling of Rockingham evidence and the documentation of Marcia Clark's visit. Clark then gave an unsworn representation as counsel about her movements and when she learned of a videotape. The trial transitioned to Dennis Fung's direct testimony about collection of blood and biological evidence, while the defense challenged documentation, chain of custody, and exhibit admissibility.

• Detective Luper testified that he found a glove in a bedroom dresser drawer, held it in his hand, and inadvertently set it on a table—all captured on video—while waiting for Lange and Vannatter to assess whether it matched the Rockingham glove
• Defense questioned the documentation of Marcia Clark's June 13 visit to Rockingham, including the absence of a sign-in entry; Clark later represented that a crime-scene log supported her account of when she was there.
• Detective Harper's recollection of when Clark visited Rockingham (June 13 vs. June 28) was undermined through crime scene logs, suggesting witness confusion between the two search warrant executions
• Marcia Clark provided an unsworn representation as counsel about her movements on June 13, said she had not seen a videographer at Rockingham, and said she had learned of the videotape only a couple of days earlier.
• LAPD criminalist Dennis Fung began systematic direct testimony documenting blood and biological evidence collection at both crime scenes with detailed chain of custody procedures
• Defense objected to exhibit boards showing phenolphthalein drain tests and serology results, challenging whether proper testing and preservation protocols were followed; Judge deferred ruling