@3T Well quite - One would have expected that performance trials would have been conducted on the devices to determine that they worked. For whatever reason ( corruption, gullibility?), those trials that were carried out were not sufficiently well controlled. And as Jake points out, they have been sold in places like Thailand and Mexico as well. There was (is) a company based in Germany selling the same stuff as well - not sure what has happened to them.
In all those tests since, where the device has been properly tested, they have been shown to be completely useless. Iraq spent millions on them, deployed them zt the checkpoints around the safe zone in Baghdad, and it is thought that many civilians were killed or injured by car bombs having gone through checkpoints where devices like this were used.
Its not as if the Department of Trade were unaware of the nature of these devices either, when they granted them an export licence - an MP had written a letter to his colleague minister asking for clarification. Seems that no one could be all that bothered to look into it properly. I do wonder whether that export licence somehow conferred a degree of legitimacy to prospective buyers.
I still cannot quite see what favour you think he has done us?