That's hard to say. How accurate is the detector? How susceptible to false-positives is it? Does it even detect anything at all? Do we really know that the "bomb detector" isn't just another ADE-651?[1][2]

[1]: http://www.cnn.com/2013/05/01/world/europe/fake-bomb-detecto...

[2]: http://en.wikipedia.org/wiki/ADE_651