One of the most interesting and recent developments in individualization techniques is detailed in the Homeland Security Bulletin below:
New Biometric Identifier
Each individual has "personal" bacteria communities living on the fingers and palms of individual computer users; members of these communities are deposited on keyboards, mice and other things we touch; the link between the bacterial communities and the bacterial DNA signatures of individuals may soon become a tool in forensic identification.
I'll be posting more on this subject as the methodology and science develop.
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