Originally Posted by
renault4
Thanks all
My wife does hold a current EU passport and is an Irish citizen; perhaps all this pops up on the immigration officer’s monitor, even though she is traveling on the US passport—which also might explain why the officer made the statement in the first place.
As an Irish citizen at Irish passport control, her presenting the US passport at passport control there in the staffed EU line would work. If she wasn't an Irish citizen and just showed up in the staffed EU line with a US passport, there may be issues at times, even as the staffed EU line can process even non-EU/non-Schengen country nationals if they want to do so.