 On 1 October Rajab was arrested after being summoned to the Criminal Investigation Directorate. He had just returned from a two-month advocacy campaign in Europe in which he criticized the government and called for international action against it. He was charged with "publicly insulting official institutions" after he had criticized the Ministry of Interior and Ministry of Defense on Twitter for allegedly being the "first ideological incubator" of Bahrainis who had joined the Islamic State of Iraq and the Levant (ISIL). A month earlier, one security officer at Ministry of Interior was terminated from employment after joining ISIL and calling on other officers to defect. The Public Prosecutor said Rajab had acknowledged publishing the comments on Twitter.
