ABERDEEN PROVING GROUND, Md.
The US ARMY knows that everything leaves a "trace", no matter where it is, what it is, computer, or animal, plant, bacteria, virus or human. In other words, nothing can really hide anymore.
Currently they are soliciting industry for a new type of analyzer - one that looks at the residual trace left by someone.
Inside that trace, the analysis if focused on the biological, content, a pico-gram (thats way smaller than nanograms) sample left by a body vapor or an exhale, spit, fingerprint.. will show through detection, and identification, and warn security and military personnel of the presence of potentially illicit or dangerous signatures present in the sample.
An example of one of the new forensic systems in operation: If a person touches something with bare skin or comes in contact with that "something", that something links back to the subject in question.
Analyzing for instance the substances present in the oil of a latent fingerprint will show what that person ingested, came in contact with (such as explosives, chemicals, toxins), has "stressors" or fear hormones/steroids, is using drugs/alcohol/medications..
There is no need to have a full fingerprint - merely brushing past an object leaves that "trace" and that is enough to be able to analyze who it came from "the bio-chemical signature trace", what they have ingested, what they have come in contact with (contraband) or restricted items..
Very coarse versions of these things have been used in airports and security areas, the earlier proof of concept systems, which blew a puff of air over a person and then trace analyzed the "air". So the technology has been being used to check people and cargo for "fugative emission" (or trace emission from substances evaporating from the object).
These newer systems optically are able to detect with even higher precision, without needing any contact, without blowing air over the target that they want to analyze.
If there is a biological weapon present (or if the person is "sick" lets say), the analysis technique will provide a rapid manner of seeing if the subjects are a hazard or potential threat.
What has not been discussed, is how much range, or distance from the scanning system is possible. Earlier in the year we have heard of laser systems able to scan at a distance for likely "targets", and those systems have not been discussed further as to their installation, validity, accuracy or reliability..
Army Edgewood Chemical Biological Center (ECBC) is the organization dealing with this current development - W911SR14R0003 is the pre-solicitation data abstract.
Did you have a drink the night before coming into work? Did you smoke, did you shake hands with Ayman al-Zawahiri ? Was there C4 in the room that you touched the doorknob for? Did somebody hand you a book/newspaper/business card which contained traces of explosives, or nerve agents? Did you touch a 20$ bill (used for snorting cocaine for instance)..
This system will flag you as a potential terrorist/suspicious person to be put on a watch list or further interrogated.
Is it fool proof? That there are so many toxic substances in the environment that one can accidentally come in contact with, this type of system easily can become a disaster tagging way too many innocents.
You see this finger? You will never know where it has been ! Your system will never work.
Technical article published in Military and Aerospace News - Army tells industry to be ready