A system and method is provided that simultaneously or consecutively collects DNA samples and ridge and valley signatures from the same subject during the same collection window that adds value to forensic data collection processes. The collection of the DNA samples and ridge and valley signatures occur...http://www.google.com.hk/patents/US7308123?utm_source=gb-gplus-share專利 US7308123 - System and method for collecting DNA and fingerprints
