(Part of the biometric product marketing expert series)
Have you heard of rapid DNA?

Perhaps not as fast as Brazilian race car driver Antonella Bassani, but fast enough.
This post discusses the pros and cons of rapid DNA, specifically in the MV Conception post mortem investigation.
DNA…and fingerprints
I’ve worked with rapid DNA since I was in Proposals at MorphoTrak, when our corporate parent Safran had an agreement with IntegenX (now part of Thermo Fisher Scientific). Rapid DNA, when suitable for use, can process a DNA sample in 90 minutes or less, providing a quick way to process DNA in both criminal and non-criminal cases.

But as I explain below, sometimes rapid DNA isn’t so rapid. In those cases, investigators have to turn to boring biometric technologies such as fingerprints instead. Fingerprints are a much older identification modality, but they still work.

DNA, fingerprints…and dental records
Bredemarket recently purchased access to a Journal of Forensic Sciences article entitled “Advances in postmortem fingerprinting: Applications in disaster victim identification” (https://doi.org/10.1111/1556-4029.15513) by Bryan T. Johnson MSFS of the Federal Bureau of Investigation Laboratory in Quantico. The abstract (which is NOT behind the paywall) states the following, in part:
In disaster victim identification (DVI), fingerprints, DNA, and dental examinations are the three primary methods of identification….As DNA technology continues to evolve, RAPID DNA may now identify a profile within 90 min if the remains are not degraded or comingled. When there are true unknowns, however, there is usually no DNA, dental, or medical records to retrieve for a comparison without a tentative identity.
In the body of the paper itself (which IS behind the paywall), Johnson cites one example in which use of rapid DNA would have DELAYED the process.
DVI depends upon comparison of a DNA sample from a victim with a previous DNA sample taken from the victim. If this is not available, then the victim’s DNA is compared against the DNA of a family member.
Identifying foreign nationals aboard the MV Conception

When the MV Conception boat caught fire and sank in September 2019, 34 people lost their lives and had to be positively identified.
While most of the MV Conception victims were California residents, some victims were from Singapore and India. It would take weeks to collect and transport the DNA samples from the victims’ family members back to the United States for comparison against the DNA samples from the victims. Weeks of uncertainty during which family members had no confirmation that their relatives were among the deceased.
However, because the foreign victims were visitors to the United States, they had fingerprints on file with the Department of Homeland Security. Interagency agreements allowed the investigating agencies to access the DHS fingerprints and compare them against the fingerprints of the foreign victims, providing tentative identifications within three days. (Fingerprint identification is a 100+ year old method, but it works!) These tentative identifications were subsequently confirmed when the familial DNA samples arrived.
What does this mean?
The message here is NOT that “fingerprints rule, DNA drools.” In some cases the investigators could not retrieve fingerprints from the bodies and HAD to use rapid DNA.
The message here is that when identifying people, you should use ANY biometric (or non-biometric) modality that is available: fingerprints, DNA, dental records, driver’s licenses, Radio Shack Battery Club card, or anything else that provides an investigative lead or a positive identification.
And ideally, you should use more than one factor of authentication.
And now a word from our sponsor
By the way, if you have a biometric story to tell, Bredemarket can help…um…drive results. Perhaps not as fast as Bassani, but fast enough.












