Mar. 23, 2021 SOG blog post by Jacquelyn Greene about requirements for preservation and disposal of biological evidence
Biological Evidence in the Courtroom: Mandatory Judicial InquiryRead More
Featured Articles
What records are available in a death investigation case blog post
Forensic Resources blog post regarding OCME discovery by Sarah Olson and Dr. Christena Roberts. Describes the items provided through a routine discovery request and additional items from the Medical Examiner file that can be obtained through a subpoena or court order. Drafted in Jan. 2020.
What records are available in a death investigation case blog postRead More
Guidelines for Digital Forensics First Responders
Interpol guidelines for best practices for search and seizure of electronic and digital evidence
Cognitive bias in forensic pathology decisions
NIST Study Will Help Labs Distinguish Between Hemp and Marijuana
PG Software and the Courts: The Verdict So Far
Bruce Budowle provides an overview of challenges to STRMix and other PG software for The Prosecutor magazine.
NIST Scientific Foundation Reviews
Document outlining NIST’s approach to conducted scientific foundation reviews (including data sources used, evaluation criteria, and expected outputs) of DNA mixture interpretation, bitemark analysis, digital evidence, and firearms examination.
Policy and procedure recommendations for the collection and preservation of eyewitness identification evidence
Wells, G. L., Kovera, M. B., Douglass, A. B., Brewer, N., Meissner, C. A., & Wixted, J. T. (2020). Policy and procedure recommendations for the collection and preservation of eyewitness identification evidence. Law and Human Behavior, 44(1), 3–36. The Executive Committee of the American Psychology-Law Society appointed a subcommittee to update the influential 1998 scientific review …
FBI admits flaws in hair analysis over decades
The Justice Department and FBI have formally acknowledged that nearly every examiner in an elite FBI forensic unit gave flawed testimony in almost all trials in which they offered hair comparison evidence against criminal defendants over more than a two-decade period before 2000. Of 28 examiners with the FBI Laboratory’s microscopic hair comparison unit, 26 …
Portable NIST Kit Can Recover Traces of Chemical Evidence
A chemist at NIST has developed a portable version of his method for recovering trace chemicals such as environmental pollutants and forensic evidence including secret graves and arson fire debris. The briefcase-sized kit could enable detectives, field inspectors and others to carry with them a convenient version of NIST’s “headspace analysis” technique, which identifies solid or …
Portable NIST Kit Can Recover Traces of Chemical EvidenceRead More
Improving a Database to Help Identify a Vehicle by Using Paint Fragments
For years, investigators have relied on the Paint Data Query database to identify the make of a vehicle by matching the physical attributes, chemical composition, and infrared spectrum of the paint, primers, and clear coating layers. However, there are concerns with the database, generic coding being one of them.
Improving a Database to Help Identify a Vehicle by Using Paint FragmentsRead More
Linking Suspects to Crime Scenes with Particle Populations
Two scientists with a long record of research into the forensic value of very small particle populations examined cell phones, handguns, drug packaging, and ski masks from the San Diego County Sheriff’s Office examine whether such particles are valuable as physical evidence.
Linking Suspects to Crime Scenes with Particle PopulationsRead More
Microbial Communities on Skin Leave Unique Traces at Crime Scenes
Two related NIJ-supported studies evaluated the possibility of using an individual’s skin microbiome — a community of microorganisms that inhabit a specific environment — as a form of trace evidence from evidence found at a crime scene. The first study, led by Dr. Rob Knight of the University of California, San Diego, examined whether the …
Microbial Communities on Skin Leave Unique Traces at Crime ScenesRead More
Toner Particles as Forensic Evidence
The Journal of Forensic Sciences is now offering an early viewing of a new article by Microtrace scientists. This article is co-authored by Katie White and Christopher Palenik. This article explores the potential usefulness of subvisible toner cartridge particles as evidence in forensic investigations. Modern printing toners represent a prime example of subvisible particles that can be …
Fingerprint Error Rate on Close Non-Matches
Sept. 2020 research by Jonathan J. Koehler and Siquan Liu on the accuracy of distinguishing between two close non-matches. False positive error rates were 15.9% and 28.1% on the two close non-matches on mandatory proficiency tests that were studied. As the size of fingerprint databases grow, the risk of a close non-match being present in …