When arriving from Terminal B which is for all Schengen flights where are you directed to. I don't think the EU Customs Agreement has nothing to do with this.
EDIT: What I meant is how are they directed toward the currect arrival area meaning can't someone from Terminal A just go through the wrong channel.
athensflights.gr/images/arrival-terminal.pdf
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Michael Hampton
Customs doesn't care about Schengen. There are Schengen countries (such as Norway) that are outside the EU customs union -- and countries in the EU customs zone that are not in Schengen (such as Ireland). What customs looks for is the green stripes on the side of baggage tags from EU countries.
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Henning Makholm
@HenningMakholm It seems like this would cause a loophole. Somebody comes in from a extra-EUCU flight with expensive goods and hands them to a intra-EUCU passenger before crossing customs.
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user71659
@ user71659 todavía se realizan verificaciones aleatorias.
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Giacomo Catenazzi
@ user71659 la mayoría de los países se preocupan mucho más por la inmigración (control de pasaportes) que por la aduana. Considere el hecho de que la mayoría de las personas que lo necesitan tendrán su identificación y otros documentos de viaje revisados, mientras que los controles de aduanas se realizan solo en una pequeña muestra de pasajeros.
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jcaron