The Biomac Foundation

His team didn't have much success using fingerprints or other physical features to identify the gun's owner. But they discovered an alternative:

Sebastian:
...That when we measured pressure, by putting little tiny pressure transducers on the grip of the gun, and we measured how you squeeze while you're pulling the trigger over a finite period of time—about a tenth of a second—that we could differentiate amongst people.

In a months-long trial, a crude prototype gun correctly identified its owner 90 percent of the time, with or without gloves. Their next step is to make the technology reliable enough for the general public. I'm Bob Hirshon for AAAS, the Science Society.

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