Developing Reliable Methods for Microbial Fingerprinting of Soil Evidence
NIJ Forensic Science R&D Symposium (Trace Microbiome session) · February 9, 2026
At the NIJ Forensic Science R&D Symposium Trace Microbiome session, David Foran of Michigan State University presented recent NIJ-funded research on using soil bacterial profiles as forensic evidence, reporting that trace amounts (down to about 1 milligram) can yield usable profiles, that storage and blood contamination alter profiles, and that surface samples are generally most informative.
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