Plaintiff attorney Peter Gelblum conducted an extensive cross-examination of defense photo expert Robert Groden, exposing alleged resume inflation, lack of formal credentials, tabloid dealings, and methodological weaknesses while using other frames from the photographic roll to challenge Groden's claimed anomalies. The defense then pivoted to toxicologist Dr. Rieders's EDTA testimony supporting the blood-planting theory. The day descended into procedural chaos with unauthorized wireless microphones, court exhibits left in a witness's briefcase, and a reported spectator incident that Judge Fujisaki later said did not occur, before the trial recessed for two weeks.

• Peter Gelblum exposed Robert Groden as lacking formal photo analysis credentials, having been paid only twice to authenticate photographs, and having inflated his resume.
• Gelblum demonstrated that the 'anomalous' blue lines Groden claimed proved forgery in the Simpson shoe photograph actually appeared on multiple frames from the same photographic roll.
• Gelblum impeached Groden with deposition testimony in which Groden had said he was 'not sure' the Bruno Magli shoe photograph negatives were fake.
• Courtroom discovery that Groden had left the courtroom with court exhibits in his briefcase, prompting Judge Fujisaki to rebuke counsel for lack of organization.
• An in-chambers hearing addressed wireless microphones brought into the courtroom by defense attorney Robert Blasier's wife and a Fox Television producer; both women were excluded after one microphone was found switched on.
• Defense counsel reported that a courtroom spectator had displayed a composite graphic image depicting Simpson slitting Nicole's throat to two elderly jurors, but Judge Fujisaki later said bailiffs confirmed the incident did not occur.
• Defense toxicologist Dr. Frederic Rieders testified that EDTA detected in blood stains from Simpson's sock and the back gate indicates blood from purple-top collection tubes, supporting the defense's blood-planting theory.
• Judge Fujisaki adjourned the trial for a two-week holiday recess and issued strict jury admonitions against media exposure and discussion of the case.