alt Hacker NewsWhen Germany invaded the Netherlands they found it extremely convenient that the Netherlands had a nice centralised paper filing system telling them exactly where all the Jews lived. The Holocaust proceeded more efficiently in the Netherlands than it had in Germany.
That papertrail mattered less than how you make it sound.
France also sent people to the Germans during the occupation, and there was very little info needed. The gov wasn't caring much about due process or lengthy and accurate investigations anyway.