🧪 Prosecution DNA Frequency Board — Main Chart (People's 260)
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🧪 Forensic in Dna Mixture Statistics

Prosecution DNA Frequency Board — Main Chart (People's 260)

The prosecution's primary DNA frequency board (People's 260), displaying DNA typing results and population frequency data for multiple evidence items including Bronco samples (steering wheel, console, item 30), formatted to show the percentage or frequency of the population not excluded. Referenced by multiple witnesses across numerous criminal trial proceedings.

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.

People's 260

Source proceedings (6)

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

Criminal trial (6)

More in Dna Mixture Statistics

1992 NRC Report 'DNA Technology in Forensic Science'
The National Research Council's 1992 report 'DNA Technology in Forensic Science,' published by the National Academy of Sciences. Referenced extensively at trial for its recommendations on the ceiling principle, laboratory error rates (page 88–89), PCR contam…
Dr. Weir's June 21, 1995 Expert Report on DNA Frequencies
Dr. Bruce Weir's 48-page expert report dated June 21, 1995, covering single-stain and mixture frequency calculations for both Cellmark and DOJ results. Admitted as People's 408. The report's Table 29-C (page 38) showed a 1-in-71 mixture frequency; page 2–3 s…
Letter from ~25 Scientists Challenging DNA Statistical Assumptions (Defense 1145)
A five-page letter signed by approximately 25 scientists in statistics and population genetics, challenging independence assumptions used in forensic DNA frequency calculations and criticizing the product rule. Submitted to Nature magazine (rejected for publ…
Defense Nanogram DNA Bar Chart (Defense 1165)
A defense chart showing estimated nanogram quantities of high-molecular-weight human DNA across Bundy blood drop items (47, 48, 49, 50, 52) and rear gate sample 117, illustrating the elevated DNA concentration in sample 117 relative to the Bundy drops. Refer…
Civil Trial Weir Mixture Frequency Summary Table (2231)
Dr. Bruce Weir's 'Summary of Mixture Frequencies' document, providing statistical frequency calculations for mixed DNA stains from items 31, 303, 304, and 305 in the civil trial. The most recent version, generated the morning before Weir's testimony, was mar…
Bundy DNA Frequency Statistics Board (Defendant's/Defense 259)
A board or chart displaying DNA typing results and population frequency estimates for Bundy walkway blood drop items 47 through 52. Used by the defense during Robin Cotton's cross-examination and referenced again during Dr. Gerdes's testimony.
DNA Quantification Chart (People's 287)
A chart of DNA quantification (nanograms per milligram swatch) prepared by Gary Sims, showing relative DNA amounts across evidence items 47, 48, 49, 50, 52 (Bundy walkway), 6, 115, 116, and 117 (rear gate). Marked for identification during criminal trial tes…
Defense DNA Concentration Comparison Charts (Defense 1192-A and 1192-B)
Defense-prepared charts comparing DNA concentration (nanograms per milligram) across samples — rear gate sample 117 versus Bundy walkway drops versus Rockingham drops. Introduced and displayed to the jury in criminal proceedings; Gary Sims confirmed the math…
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🔬 Prosecution DNA Frequency Board — Main Chart (People's 260)
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