@Fraser
Chemists = Terrorists ('yes Sir, we know its fertilizer, now where's the rest...)
Hair Dressers = Communication links for Terrorist cells (well they chat don't they?)
Brickies = Foreign no-gooders (Poles, didn't they used to be Commies?)
Workshop Engineers = Labourers = who cares, are they middle class?
fingerprint = (Wavelet?) transform of data = data reduction (FBI style)
Off The Shelf kit = hacked, cracked and broken
Well designed upgradeable custom kit = expensive, non-market driven non-competitive, oh, of course a bit difficult for a bunch of lawyers to get right.
Discussions of how things can go oh so easily pear shaped = difficult (see above) because it involves some understanding of Maths/probability/engineering/design (see above), also see any discussion about science Vs woo. This project is WOO WOO through and through.