>>If passports are scanned at the point of entry into the Schengen area
I often watch a program called "Alerta Aeropuerto". Bit sad, standard watching Customs & Immigration thing, but I enjoy it.
Anyway, point being that when checking illegal immigration, they seem to be well able to check a passports entry and exit from other Schengen countries.
Land travel between Schengen countries will, one assumes, be a bit more challenging.
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