tužilaštvo

1. prosecutor's office
   Tužilaštvo je podiglo optužnicu protiv bivšeg direktora. — The prosecutor's office indicted the former director.
   Slučaj je prosleđen Višem javnom tužilaštvu u Beogradu. — The case was referred to the Higher Public Prosecutor's Office in Belgrade.
2. (in court) the prosecution
   Tužilaštvo traži kaznu od deset godina zatvora. — The prosecution is seeking a ten-year prison sentence.

The prosecutor as a person is tužilac; tužilaštvo is the office or the prosecution as a side.