Originally Posted by
WorldLux
The theory is however that you should be declaring there and a friend of mine did so in FRA while transferring. At his final destination the customs official wanted to look into his carry-on and he pulled out his receipt from the Zoll.
FRA has some phones, but there is the one area airside that has a small red/green channel to go through, though I've often seen it unmanned with a note to go find some office... At least the time I needed to declare a pile of DM banknotes I had to go on a hunt for someone to stamp my form just in case there was someone at the next airport.
Granted, I suppose if one actively approaches a customs official at your final destination about declarable goods in hand baggage, I would guess most would be lenient, but might not always be the case if someone is having a bad day.