"It's legally impossible to exclude Greece from Schengen zone"

“In my opinion it is legally impossible to exclude Greece from the Schengen framework,” cep legal expert Urs Pötzsch said in the interview with Euranet Plus. “But in applying the derogations like the reintroduction of border controls, it is in reality possible to isolate Greece within the Schengen area. And persons who want to enter from Greece to other Schengen countries are forced to accept border controls,” he explained.