Originally Posted by
FlyerLX
So...
If I go B to A... I will definitely have security, even if I use the tunnel...?
The tunnel connects A to Schengen B. The passport control to enter Schengen in B is outside security.
If I go Z to A, I might have security or might not. I still don’t get how they decide... Are some Z gates for clean arrivals and some for non-clean? Or does it depend on whether a clean and non-clean flight come in at the same time, meaning that all transfer pax then have to go through security?
It depends on where your flight is coming from. E.g. from USA you arrive clean. But if you get a B gate it doesn't help you, still need to exit security to get to A/Z/Schengen B
Both B and Z gates can operate clean (you just walk into the secure area) or dirty (B gate you are routed to non-secure corridors, Z you get put on a bus).