The perpetrators were members of the Mudiriyah Bandung Raya , a terrorist group which had a connection with Bahrun Naim , the perpetrator of the 2016 Jakarta attacks . Bahrun Naim was an ISIS-affiliated terror group with a Tafkiri belief . Both the Mudiriyah Bandung Raya and Bahrun Naim shared this belief . The belief stated that the police was the group enemy number one and that the police were infidels . They were declared as infidels since the police halted , blocked and foiled terror plots . The police were also declared as infidels because the police would n't accept the concept of caliphate in Indonesia , whereas the terror group praised the ideology of the caliphate . The police also stated that civilians , even fellow Muslims , that did n't accept the ideology of caliphate in Indonesia were also called as infidels by the terror group
2016 Jakarta attacks
2016 Jakarta attacks
2017 Jakarta bombings