🧪 EDTA chromatography slide series — admissibility ruling (Defense 1257-A through S)
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EDTA chromatography slide series — admissibility ruling (Defense 1257-A through S)

Collective admissibility ruling by the court on the full set of Defense EDTA chromatography slides numbered 1257-A through S, used with Dr. Rieders and Agent Martz. Several slides were admitted without objection, one required modification (1257-P, box showing Q207 location to be removed), and others were passed to an afternoon session.

Exhibit labels

How this item was marked across the four trials. The same physical item often gets different numbers in the criminal and civil trials.

Defense 1257-ADefense 1257-BDefense 1257-CDefense 1257-DDefense 1257-EDefense 1257-FDefense 1257-GDefense 1257-HDefense 1257-IDefense 1257-JDefense 1257-KDefense 1257-LDefense 1257-MDefense 1257-NDefense 1257-ODefense 1257-PDefense 1257-QDefense 1257-RDefense 1257-SDefense 1257-A through S

Source proceedings (1)

Every proceeding where this item was discussed. Click through to the transcript.

Criminal trial (1)

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Harmon letter to Martz requesting EDTA testing (Defense 1263)
A February 16, 1995 letter from prosecutor Rockne Harmon to FBI Agent Roger Martz requesting EDTA testing, containing language asking Martz to 'refute the possibility' of planted blood. Read aloud by Martz during criminal trial testimony and re-referenced in…
OJ Simpson's socks — physical evidence item (Item 13)
The pair of dark socks recovered from OJ Simpson's master bedroom at Rockingham, central to the blood-planting allegations. Examined June 22 by Baden and Wolf with no obvious blood, again June 29 with nothing obvious, then found August 14 with copious blood …
Q206 sock stain LC-MS/MS chromatograms, runs 4088 and 4094 (Defense 1259-A, 1259-B)
Two LC-MS/MS chromatogram runs of Q206, the sock edge cutting: run 4088 (discovery page 4088, Defense 1259-A; civil Defendants' 1215) and run 4094 (discovery page 4094, Defense 1259-B; civil Defendants' 1216). Together they constitute the first and second co…
Foreman and Trujillo 1954 EDTA absorption and pharmacokinetics study
A 1954 study by Foreman and Trujillo using radioactive carbon-labeled EDTA administered to human subjects to measure oral absorption rates and pharmacokinetics. Cited by both Rieders and Martz in dispute over baseline EDTA levels in healthy uninjected person…
Roger Martz criminal trial testimony transcript
Transcript pages from Agent Roger Martz's criminal trial testimony, referenced in civil proceedings both as a foundational exhibit (Defense Exhibit 1264 in civil, July 25 page 38649) and for impeachment purposes comparing his statements at pages 38641 and 38…
50 ppm EDTA standard chromatograms, February 22 — morning and afternoon runs (Defense 1262-A, 1262-B)
Chromatograms of 50 parts per million EDTA reference standards run twice on February 22: at 9:32 AM (discovery page 4077, ion count approximately 319,561; Defense 1262-A) and at 1:48 PM (discovery page 4070, ion count approximately 49,393; Defense 1262-B). I…
Q206 sock stain full daughter ion scan, broader mass range (Defense 1259-C)
Full daughter ion scan chromatogram of the Q206 sock stain cutting spanning a broader mass range of 130–295, less focused than the standard 160/293 runs. Used both on direct examination by Rieders and on cross to probe whether the 132 ion signal rose meaning…
Q206 composite chromatogram slides (Defense 1257-Q and 1257-R)
Composite slides displaying both Q206 sock stain chromatograms together, used with Dr. Rieders for jury visualization. Defense 1257-Q shows the combined display; Defense 1257-R is the same composite with EDTA peaks highlighted.
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The Simpson Matter
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🔬 EDTA chromatography slide series — admissibility ruling (Defense 1257-A through S)
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