Forensic identification from highly degraded remains is one of the most technically demanding applications in DNA science. Degradation, inhibition, and very low template quantities combine to defeat extraction methods that work reliably on clean reference samples.

Two independent studies have now examined forensicGEM Universal chemistry on the hard tissue samples that appear at the most challenging end of forensic casework.

The first, published in Electrophoresis (Zapico et al., 2024), is the first peer-reviewed assessment of enzymatic extraction on dental material. forensicGEM Universal was tested on tooth samples and produced STR profiles without the mineral demineralisation steps and organic extraction chemistry that conventional hard-tissue protocols require.

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The second, from John Jay College of Criminal Justice (Vega, 2023), tested forensicGEM on a set of highly degraded forensic samples — including material from the 9/11 World Trade Center attacks. The kit yielded a 22-locus STR profile and a 15-locus profile from two of the most degraded samples in the study, using 10 mg of bone as starting material. By comparison, the conventional organic extraction method typically requires 2 g. The study also found that bone scraping produced better DNA yield and profile quality than the standard milling approach.

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For forensic laboratories working on missing persons cases, disaster victim identification, or historical remains, the practical implications are real: a single-tube enzymatic extraction that generates STR-quality DNA from 10 mg of degraded hard tissue reduces the sample consumed per attempt and simplifies a technically demanding workflow.