>This registry was centralized, continuously updated, and included religion, addresses, family connections, and occupations.
Sorry, but why would the Dutch government need to know all those details in the first place? Did Dutch citizens never ask that question back then? Nazis or no Nazis, that was an issue waiting to happen. I guess it wouldn't have mattered if they did, since the Netherlands was a kingdom and people didn't have much say into how the monarchy ran things.