I wonder if this is also true if you are a foreigner visiting the US.
And I wonder if this also works for the Dutch police.
And I wonder if this also works for the Dutch police.
It won't work on Customs and Immigration. When you're talking to them you're not "in the US" yet. After that, yes, the privilege against self-incrimination is granted to everyone in the United States, citizen or not.
> And I wonder if this also works for the Dutch police.
The privilege in question is considered an essential component of the Fifth Amendment to the US Constitution. Most other countries based on English common law have something similar. You'll have to look for parallel support within the Dutch legal system.