I can't find anything online that includes "original jurisdiction", too bad you don't have the original :-( (I wonder if that was added by the translator)
COURTS:
Supreme Court of Cassation
The Constitutional Court
The High Judicial Council, Немањина 22-26, тел. 3027-402
The Commercial Court in Belgrade
Commercial Appellate Court
Court of Appeal in Belgrade
Administrative Court
Palace of Justice
The Higher Court in Belgrade
First Basic Court in Belgrade
Second Basic Court in Belgrade
Third Basic Court in Belgrade, тел. 3601-400
The Higher Court in Belgrade - a special department for organized crime, Ustanička 29, tel. 3082-514
www.beograd.rs/index.php?lang=cir&kat=beoinfo&sub=202484?