Checkpoint Doctrine
“…a good physical
pat-down search
requires the screener
to do a full deep knee
bend to get to the
lower extremities.
After just a few such
searches, the
potential for screener
fatigue and even
joint/back injury is
quite high…”
searches can add a tremendous amount both in theory and in practice; pilot vectors and the ability of technologies to
of time to the total throughput, especially projects are essential. This allows for detect the threats are justifiably closely
since there are so many false positives as adaptation and changes necessary to guarded information, the greater cause is
a result of the passenger forgetting to meet the real operational needs. that there just is not a lot of leading
remove some metal object. This includes management of how the doctrine out there.
The new technologies face the same person and their carry on articles are
concern about divestiture, because some, presented to the technologies. Besides
such as the imaging technologies, will visible and comprehensible posters
detect all materials. Indeed, with (allowing for the language barriers that are
increased detection the divestiture rules commonplace at airports), thought has to
will be ever more critical. be given to having tray systems that do not
There are many ways of speeding up the allow people “in the know” and with bad The author holds an engineering degree
processing of people through a intent to place their bags in the X-ray from the US Military Academy and a
checkpoint, and this requires a good deal machine (or alternative technology) in a Master of Science from George
of thought about queuing theories and way that prevents good analysis and may Washington University and after military
how to do parallel analysis. Operational deliberately conceal an item contained service has spent much of his
analysis is needed to understand how therein from detection. The same is true professional life working for various
best to test the system, find the major for the passengers themselves; the divisions of Honeywell. Since his
chokepoints and develop innovative ways “stance”, in imaging technologies, is very retirement from Honeywell, he has been
of reducing them. important for analysis. active in consultancy projects which have
Again, doctrine and resulting concept involved numerous missions to establish
Effectiveness of operation is key. operational concepts for screening
How effective a checkpoint is depends checkpoints worldwide, including at
on what you are looking for. Clearly it is Summary military bases and sites in Iraq and on the
easier to find larger threat objects than One would have thought that there would border between Israel and the Gaza Strip.
smaller ones. It is easier to find objects be enough positive doctrine at existing Currently he is the President of L3
using imaging technologies if people are checkpoints for other designers to visit a SafeView and he serves on the National
required to divest all objects. In the few key sites to establish basic needs. Academy of Science’s Committee on
design process of a checkpoint, it is Unfortunately, this is not the case. While Assessment of Technology for
clearly a good idea for it to be modelled, part of the reason is that the threat Transportation Security.
26
www.asi-mag.com February 2007 Aviationsecurityinternational
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