Canis primis,
Exactly correct. The security at FRA has adopted an explosive tag/strip check for staff and crew. Baggage, belts and hands are swiped and then the tag is monitored for any explosives. Green = pass, Red = baggage scan.
Why the rest of the free world refuses to embrace and use technology is beyond me.
Swiss army knives sold airside? Try to pry open the cockpit door with a 6cm blade.
Mandi,
Soda