Most long-term visitors will probably need to make a trip to the foreign police office.

Among other things, this is the place that needs to verify you have no criminal record, if you are applying for residency. Note, however, that the people working in this office don't speak foreign languages. To spare yourself undue hassle, try to bring a friend, hire an intepreter, or get the exact details of what you need to do from someone who has been through the process recently.

EU citizens and matters regarding permanent residency (for all citizenships) will likely be herded to the Prague 4 office.

Opening Hours are:
Monday & Wednesday: 7:30 - 17:00
Tuesday & Thursday: 7:00 - 14:00