Ah, this is starting to make some sense to me. I have often tripped the mag at FRA. Then usually a "close wanding" where the wand is actually against myclothes. A few months ago on my way to Berlin I was left for 20-30 seconds
behind the drawn curtain. Playing a bit with the wand that was left behind I found a button that would reproduce the buzzing sound of the wand. I wonder if these techniques are a way to implement a more targeted screening, while
looking completely random. I am no security risk, but do have lots of stamps in the passport from many warm, sandy countries.