When I moved to my current place, I registered my residence at the local police station (giving them a copy of my contract; I think this is called 登记). At the time, I ended up befriending a local police officer. Today I (inadvertently) ran into him at lunch, and he asked me if I had already "bàobēi", saying if I haven't already I should do so. At least, that's what I think I heard.
Looking up similar words in the dictionary, he may have said:
CC-CEDICT: 报备 (bàobèi) to report a proposed activity to an authority (to obtain approval or register one's intentions)
However, I'm not sure why he would ask me this, and whether or not this refers to registering my residence at the police station. I can't think of anything else I would need to do, but the rules here change from time to time and sometimes I'm not up to date.
Question: A policeman asked me if I had already "bàobēi" (or something like this); what did he ask me?