This brief follows an extensive Frye hearing on bullet matching evidence and incorporates extensive criticism from the scientific community, an explanation of the unintended impact that a narrow definition of the “relevant scientific community” can have, and evidence of the ways that cognitive bias impermissibly taint pattern-matching evidence.
Filed by the Center for Integrity in Forensic Science, this brief explains the research demonstrating that cognitive bias in forensic analysts contributes to unreliable conclusions.
Transcript of testimony and argument pursuant to the defense motion to exclude the government’s expert witness. Defense witness explains (with research studies as examples) confirmation bias, contextual bias, and exposure to task-irrelevant information. Arguments: p. 57-70.