First batch of prisoners processed (spoilers)
... at the beginning of the movie came with their belongings (including wallets and valuables) and didn't seem to know the Nazis were lying to them. At least they stripped and went into the "showers" without exhibiting distress, other than a couple at the end of the sequence.
Someone said that these people had come from another Camp.
Would it make sense for them to have their belongings and not be freaked out?