A case has been filed against Islamic preacher Mufti Kazi Ibrahim under the Digital Security Act. Mohammad Abdul Latif, officer-in-charge of Mohammadpur Police Station filed the case on Tuesday night with the police station following an allegation of DB-Cyber and Special Crime Department. READ: Islamic preacher Mufti Ibrahim detained The web-based crime investigation team of the Intelligence Department of Dhaka Metropolitan Police found some video clips of the preacher on social networking sites where he gave controversial statements. READ: Mufti Amir Hamza placed on 5-day remand in Parliament building attack case Police arrested preacher Mufti Kazi Ibrahim from his Mohammadpur residence on Tuesday.