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Forensic evidence failures
Science in court must be valid, transparent, and accurately explained
Forensic evidence can mislead when methods lack validation, samples are contaminated, analysts overstate conclusions, uncertainty is hidden, laboratories lack safeguards, or testimony goes beyond what the data support. Even a technically sound test can be misused through poor collection, interpretation, reporting, or presentation.
What failure can look like
- Claims of certainty or individual identification unsupported by the method or report
- Contamination, mixed samples, inadequate controls, undocumented deviations, or broken chain of custody
- Changed conclusions, undisclosed proficiency problems, laboratory errors, or testimony inconsistent with the underlying data
Protect the record
Preserve laboratory reports, bench notes, photographs, instrument files, quality records, validation studies, chain-of-custody documents, testimony, and the exact language used to express conclusions. Consult qualified counsel and an independent expert before testing or consuming limited evidence.