Police believe that the attack was well-planned in advance, as Ibrić knew exactly when the officers' shifts switched, and thus began his spree when the most policemen would be inside the station.
The President of Republika Srpska, Milorad Dodik, criticised police and security agencies at the state-level for not providing Bosnian Serb authorities with any useful information about potential terrorist plots prior to the attack.
[12][13] Ibrić was buried on 30 April 2015 at a local cemetery in Kučić Kula near Zvornik in accordance with religious rituals with several hundred people attending his funeral.
Hasanović was previously arrested by SIPA during the anti-terrorist action Operation Damascus, as he was suspected of being a member of the Islamic State of Iraq and the Levant (ISIL).
Soon after the attack, Dodik met with Serbian President Tomislav Nikolić and Prime Minister Aleksandar Vučić, asking them for intelligence and counter-terrorism assistance.
[17] On 6 May, the Republika Srpska launched Operation Ruben in order to root out suspected radical Islamists from the entity, detaining dozens of Muslim Bosniaks,[18] as well as confiscating weapons, ammunition and propaganda material believed to be aimed to encourage Bosnian citizens to join fighters in Syria.
[27] According to Balkan Insight, their names were mentioned among more than 850 Serb soldiers and policemen on a 2004 Republika Srpska government report on the Srebrenica massacres.