Inny,
As usual, I have to correct your geographical and historical mistakes made in the above posted sentence.
1) Poland is not located in Eastern Europe.
2) Jews who lived in Europe before WWII were citizens of the countries that they lived in.
When Poland was founded after WWII, it gave Polish passports to Jews. However, it declared in the 1930's that any Jew who left the country would not be allowed to return.
In 1938, the nazis tried to deport all Jews with Polish passports living in German back to Poland but the Polish government refused to accept them. (This was one of the things that solidified German public opinion in favor of going to war with Poland.)
The law against Jews returning to Poland would have theoretically applied to Georges Charpak, although Charpak was in France at the time, not Germany.
The Poles now claim Charpak as a "Polish" Nobel Prize winner. If that is not the height of hypocrisy, I don't know what is.