Fingerprint analysis technique could be used to identify bombmakers / EurekAlert, 26 August 2008
http://www.eurekalert.org/pub_releases/2008-08/uol-fat082608.php
"The state-of-the-art forensic method that can identify fingerprints on bullets could now be used on bombs. The new techniques can pick up fingerprints on metal even after they have been wiped off."