@inseltaffe, sorry mate but this is not new,you have all ways
had to carry your passport with you as a non german ,along with
your Aufenthaltsgenehmigung (residence-permit); the social-
versicherungs karte is also to be carried when working,fines for not haveing this with you were around €90 last time we had this question on the german site.
The other point for all those who are resideing in germany as
gastarbeiter , you have to have a PASSPORT that is in date,
other wise you can find yourself in deep trouble, i