The fingerprint of paper

Friday, 12 August 2005, 8:09 PM EST

At a time of rising concern about terrorism, British scientists last week announced that they had discovered a relatively inexpensive and surprisingly powerful new way to defeat forgers attempting to fake birth certificates, passports, and other documents.

The scientists built a laser scanner that sweeps across the surface of paper, cardboard, or plastic, recording all of the unique microscopic imperfections that are a natural part of manufacturing such materials.

By Gareth Cook at Boston.com

[ Read more ]




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